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[[quoteright:300:[[WesternAnimation/{{Aladdin}} https://static.tvtropes.org/pmwiki/pub/images/jaw_drop.jpg]]]]
[-[[caption-width-right:300:[[IronicEcho So don't just sit there, slack-jawed, buggy-eyed...]]]]-]

->''"I've achieved 'exasperating,' and I've achieved 'eye-popping'. ''(THONK!)'' '''All right!!! 'Jaw-dropping'!!'''"''
-->-- '''ComicStrip/{{Garfield}}''', reacting to Jon Arbuckle doing this, after seeing Garfield had torn up his furniture.

Most frequently observed in WesternAnimation, though it also occurs in other media as well. A character becomes surprised or shocked, and their jaw drops comically, oftentimes with the [[StockSoundEffects sound of a saucepan]] for the comedic cherry on top. This is done to ridiculous extents in some cases (where the jaw drops to the floor and sometimes even an OverlyLongTongue rolling out, as seen with Genie in the image on the right), but also sometimes within a reasonable human limit (as seen with Jafar). The former can be either pure RuleOfFunny or justified by the character having [[RealityWarper supernatural powers]] or [[RubberMan superhuman flexibility]].

On occasion, another character will reach over and close the dropping character's jaw.

Compare {{Gasp}}, WildTake, EyePop.
----
!!Examples:

[[foldercontrol]]

[[folder:Advertising]]
* An ad for mobile phone plans that would "really make your jaw drop" was accompanied by a man's jaw-dropping to ever-increasing CGI-lengths as he listened to each new benefit.
* There was once an [[https://www.youtube.com/watch?v=proTtfmGpK8 ad for the Ford Ka]] featuring a jaw drop.
* There's a truck ad in which everyone stares agape in the presence of the truck's awesomeness. And we do mean everyone - even a bear (drops a fish out of its mouth) and ''other trucks'' (their tailgates fall open).
* In an ad for Amazon Prime depicting [[TakenForGranite Medusa]] ordering [[PowerNullifier sunglasses]], then going to a bar, a generic, mega-muscled hunk at the bar itself starts ogling one of the women at Medusa's table. After being petrified, his lower-lip and chin promptly break off and land on the bar.
[[/folder]]

[[folder:Animation]]
* ''Animation/HappyHeroes'': In Season 3 episode 5, Big M.'s jaw drops when he nearly gets hit by a knife. He promptly compresses his mouth closed.
* In the ''Animation/{{Lamput}}'' episode "Rival Doc", this is Specs Doc and Skinny Doc's reaction to the rival doc actually managing to capture Lamput by getting him to climb into his suitcase with minimal effort. The stunned scientists promptly push each other's jaws back into place.
* ''Animation/SimpleSamosa'':
** In the episode "Cricket Match", Samosa's jaw drops in surprise when he first sees that his friend Jalebi is participating in the cricket game, complete with an OverlyLongTongue rolling out of his mouth.
** This happens twice in "Spa Wars", both examples also featuring {{Overly Long Tongue}}s. The first instance is when Dhokla stares in awe at the futuristic technology found in Appa Spa. The second instance is when Samosa looks on in surprise at Iddiyappam Appa confessing his love for Iddiyappam Amma, and the latter returning the former's feelings.
[[/folder]]

[[folder:Anime & Manga]]
* ''Manga/AzumangaDaioh'': Used as Mr. Kimura's default expression, as it's rare to ever see him with his mouth ''closed''.
* In ''Literature/{{Bakemonogatari}}'', Araragi takes a moment to really look at the [[CatGirl Bakeneko]] (who is possessing Hanekawa). As he takes in all the details -- the long white hair, the twitching [[UnusualEars cat ears]], the bare shoulders, the [[BuxomBeautyStandard large breasts bulging out of the half-unbuttoned pajamas]], the cat-like way she licks the back of her hand -- his draw drops so hard it ''cracks the concrete.''
* Hideki of ''Manga/{{Chobits}}'' drops his jaw in four stages, each time making a sound like a squeaky hinge when Chi points at a want ad for a dominatrix and asks whether it's a job she could do.
* In ''Anime/DigimonAdventure02'', Daisuke (Davis), V-mon (Veemon) looks Patamon digivolving to Angemon
* In ''Anime/DigimonTamers'', Jenrya (Henry), Ruki (Rika), and their partners do this when they realize that Dukemon (Gallantmon) is Takato fused with Guilmon, though compared to other anime, their expressions are much tamer (no pun intended).
* ''Anime/DragonBallZ'': It happens to Krillin after being dumped by his ex-girlfriend (in one of the anime fillers).
** Back in the original ''Manga/DragonBall'' era's second arc, Master Roshi/"Jackie Chun" had a pretty good one when Goku avoided a ringout by helicoptering in with his tail.
* In ''Anime/EigaTamagotchiHimitsuNoOtodokeDaiSakusen'', Spacytchi does a rather deadpan jaw drop after seeing [[spoiler:Oyajitchi of all people emerging from the egg that Mametchi and his buddies delivered to the Gotchi King (Spacytchi had hoped a wish-granting being would hatch from the egg so that he could wish to take over Tamagotchi Planet)]].
* ''Manga/FullmetalAlchemist'':
** [[spoiler:''[[{{God}} Truth]]'']] does this near the end of ''Brotherhood''.
** Greed after [[spoiler: Edward decides to '[[InsistentTerminology work]]' for him]].
** Alex and Olivier Armstrong also do this after witnessing [[spoiler:Izumi toss Sloth around like a ragdoll]].
* ''Manga/KaijuGirlCaramelise'': When Kuroe and Manatsu are attacked by giant {{Malicious Monitor Lizard}}s, one of the lizards does this in response to Kuroe turning into [[{{Notzilla}} Harugon]] in order to fight them off.
* Dedede and Escargon from ''Anime/KirbyRightBackAtYa'' does this after catching a glimpse of Fumu-tan of the Stars.
* ''Manga/MakenKi'': Minori has a knack for leaving onlookers shitfaced [[ThisCannotBe in disbelief]], due to [[BadassAbnormal how freakishly strong she is:]]
** She left everyone slackjawed, near the end of the Venus Arc, by physically ripping apart one of Martha Minerva's dimensional barriers. A feat that ''should have been'' impossible, since Minerva is an '''SS rank''' Maken user.
** During her fight with Ouken Yamato (chapter 42), she punched him through a cliff wall and out the other side, which split the rockface in half and left Takeru incredulous. Then she stunned Miyabi when she unleashed "Ginko Muro" on Ouken, causing Miyabi [[ThisCannotBe to fear Ouken]] might've lost.
* Occasionally done in ''Manga/{{Naruto}}'' when Kishimoto briefly uses the "comedic" wacky art style instead of his more realistic one.
* Chamo the ermine from ''Manga/NegimaMagisterNegiMagi'' does this when he sees Negi run out of magic, the Giant Oni is standing in front of him, and the powerhouse mage behind him gets out of his bind.
* ''Manga/OnePiece'' has enough to justify its own page.
** In the first half of the series, this is the general reaction when Luffy reveals his [[RubberMan Gum-Gum powers]]: Alvida and crew, Coby, Zoro, Nami, Buggy and crew, Carrot, Pepper, Onion, Usopp, Kaya, the Black Cat Pirates, Sanji, Don Krieg's crew... the list goes on.
** Some of Alvida's pirates have this reaction when Luffy bursts out of a wine barrel, and then casually asks who they are.
** Alvida, Coby, and all of her crew do this when Luffy calls Alvida fat (or rude, or ugly, depending on the translation): her BerserkButton.
** Axe-Hand Morgan, Helmeppo, and all present Marines when Luffy accidentally breaks Morgan's giant statue of himself.
** Also done by Buggy's crew and Nami when Luffy presses his Berserk Button: "BIG NOSE!"
** Johnny and Yosaku have an epic one when they see that Arlong bit a stone pillar…and the pillar breaks beneath his teeth. Usopp gets one, too, but nowhere near as epic.
** When Nami leaves her hometown to go with the Straw Hat Pirates, she rushes through the crowd, assembled to see the Straw Hats off, without stopping or giving anyone a decent opportunity to bid her farewell, and leaps from the port all the way to the ship, which had already gotten some distance away. Then she lifts her shirt, and countless wallets fall to the ground…yeah, she ''pick-pocketed the entire village.'' Cue their Jaw Drop.
** Every single member of Buggy's crew after Luffy's miraculous rescue.
** Mr. 5 has this reaction right before Zoro [[OneHitKO one-shots]] him. Vivi has this reaction immediately afterwards. And then Carue has this reaction a few moments later when Nami comes out of nowhere and one-shots both Luffy and Zoro.
** Vivi tells Luffy, Zoro, and Nami not to ask her about the identity of the boss of Baroque Works, because if she tells them, they'll be in danger too. [[SammysGlassEye Then she lets it slip.]] Nami and Vivi have this reaction while Zoro says "YouJustHadToSayIt".
** On Little Garden, when Sanji casually reveals to the others that they don't actually have to wait around for a year for the log pose to reset, because he intercepted an Eternal Pose to Alabasta (which is exactly where they want to go). Cue ''giant'' jaw drop from the ''entire'' rest of the group (Luffy, Zoro, Nami, Usopp, Vivi, and Carue, a ''duck''), which in turn causes Sanji to SweatDrop.
** In Alabasta, Luffy performs a Gum-Gum Rocket to get to a restaurant, because he's hungry…as usual. He flies into Smoker, knocking him and Portgas D. Ace through at least fifteen walls before he asks the chef for food. Everyone in the restaurant has this expression, not just because of his DynamicEntry, but because he just sent Ace flying, and Ace is a very high-ranking member of the [[TheDreaded Whitebeard Pirates]]. And their fear probably would have been justified if Ace wasn't his brother.
** God Enel (Eneru) is always calm and composed...until he realizes [[ShockAndAwe his powers]] don't work on [[RubberMan Luffy]]. [[https://static.tvtropes.org/pmwiki/pub/images/onepiecejawdrop.jpg Cue FULL PAGE Jaw Drop]].
** The reaction of the entire Franky Family and the Galley-La Foremen when Luffy and Zoro create a gaping hole in the Aqua Laguna (a tsunami) large enough for their sea train to go through when their best efforts only made splashes.
*** A bit later, they have this reaction again when Zoro bisects a pair of train cars in front of them. The government agents in said train cars join in the Jaw Drop and the BigWhat.
** Oimo has one after he's been tricked into hitting Kashi with his club, knocking him out.
** Done ''frequently'' with Spandam, in his equally frequent OhCrap moments.
** All of the Marines and Agents on Enies Lobby, along with Spandam and Robin, have this reaction when the Straw Hats shoot the World Government's flag: a declaration of war.
** The reaction of everyone present when Robin uses her powers to squeeze Franky's testicles.
** Although it wasn't on a full page, Perona pretty much had a very similar expression as Enel when she realized her powers (which makes people feel extremely negative about themselves) can't work on Usopp.
** Luffy and later Zoro, Usopp, Chopper, Brook, and Nami to a lesser extent have this reaction when they see Duval's face.
** When Luffy attacks Saint Charloss for shooting Hachi[[note]]Charloss is a World Noble, who are practically the AristocratsAreEvil trope incarnate, and the price for harming them in any way is being hunted down by a Marine Admiral. Why is that bad? Anyone with enough power to hold the title of Admiral is considered TheDreaded; most pirates would run away screaming at the mere sight of one.[[/note]] the only ones in the entire building who don't have this reaction are the other Straw Hats, the other World Nobles (though they're stunned, too), and Trafalgar Law and Eustass Kid, both of whom smirk.
** Everyone in the Kuja Tribe except the leader, Boa Hancock, does this when Luffy [[OneHitKO one-shots]] Bacura.
** Ivankov, Buggy, Galdino (Mr. 3), and hundreds of Marines and pirates have this reaction when Luffy starts talking back to Whitebeard, and then shouts at his face, "I'M GOING TO BE KING OF THE PIRATES!" For dozens, if not hundreds, of the pirates and Marines, this justifies ATruceWhileWeGawk.
** In Chapter 731, Luffy [[WhamEpisode mimics the audience's reaction]] with a huge, Enel-like jaw drop that once again fills the entire page. We don't see what he sees, but we're told what it is through a very-telling WhamShot: [[spoiler: '''''Sabo''''', who is actually still alive.]]
** Rocinante, a.k.a. Corazon, does this when Law first refers to him as "Cora-san".
** Diamante has this reaction in Chapter 776, mixed with OhCrap when he sees that Kyros is unfazed by an attack that could take out an army. Underestimating him was a fatal mistake.
** And ''nothing'' can be said about the epic, collective jaw drop all of Dressrosa has in Chapter 778 after [[spoiler:'''''[[PersonOfMassDestruction Zoro slices the mountain-sized Pica to bits]]''''']].
* In Episode 21 of ''Anime/OsomatsuSan'', the Sextuplets do this after Kamimatsu reveals that he has naturally started a job for the family.
* ''Anime/PokemonTheSeries'':
** Ash does this when he realizes that he's won against Sabrina in their gym match when Haunter gets her to laugh, which, due to a telepathic bond with her Kadabra, makes it laugh, too.
** Brock's Ludicolo [[http://www.serebii.net/anime/pictures/houen/382ps11.shtml has an epic jaw drop]] after his Mawile crush dumps him for a Psyduck.
* In Episode 27 of ''Anime/SmilePrecure'', Wolfrun's jaw hangs to his waist when he realizes that he can't get Bad Energy from Tae.
* ''Anime/TengenToppaGurrenLagann'' has this in episode 13. Everyone on the team does this when they see Simon and Boota ravenously devouring the vast array of food prepared by LethalChef and otherwise perfect girl Nia, having just sampled the food themselves.
* Jaden Yuki on ''Anime/YuGiOhGX'' does this while turning his face square.
* In the episode "The Steel Bison", ''Anime/ZoidsChaoticCentury'' has the ''Blade Liger'' of all things doing this with a SweatDrop when it's accidentally targetted by the [=DiBison=] along with the enemy targets before firing a BeamSpam.
[[/folder]]

[[folder:Comic Books]]
* Phoney Bone does this in ''ComicBook/{{Bone}}'' when Lucius outsmarts him at the Great Cow Race by putting the deed to his tavern on Gran'ma Ben... [[HoistByHisOwnPetard At 100:1 odds that Phoney had arranged for after fooling everyone else into thinking she couldn't win]].
[[/folder]]

[[folder:Comic Strips]]
* ''ComicStrip/{{Candorville}}'' has an unusual variant in which characters' jaws unroll like carpets, lying flat across surfaces. [[http://candorville.com/2010/10/08/something-good-5/ This is a good example]] of the phenomenon.
* ''ComicStrip/{{Garfield}}'': In the [[https://www.gocomics.com/garfield/1993/12/04 1993-12-04 strip]], Jon's jaw drops to the ground when Garfield shreds his couch's upholstery.
* A hilarious five-way jaw drop happens between Ming, Jenny, Luis, and the dodos happen in [[http://safehavenscomic.com/comics/january-10-2019 this strip]] of ''ComicStrip/SafeHavens'' when they find out [[spoiler:Maria the time-traveler is Samantha and Dave's KidFromTheFuture]].
[[/folder]]

[[folder:Fan Works]]
[[foldercontrol]]

[[folder: ''Comic Strip/Calvin And Hobbes'' ]]

* ''Fanfic/CalvinAndHobbesTheSeries'': Calvin's mom does this when she realizes that the canoe (the only way off their camping island) has drifted away.

[[/folder]]

[[folder: Cross Over ]]

* ''Fanfic/KyonBigDamnHero'' (''Literature/HaruhiSuzumiya'' & Website/TVTropes): Koizumi after Kyon commented he (that is, Kyon) [[spoiler: was set in an ArrangedMarriage with Tsuruya.]]
* ''Fanfic/ShadowsOverMeridian'':
** This is Hay Lin's reaction to Taranee's PrecisionFStrike is Chapter 7.
** Caroline's jaw drops in Chapter 29 as she [[InternalReveal learns]] from Sofia and Maya details about Phobos' jailbreak and alliance with the Shadow Realm.

[[/folder]]

[[folder: Franchise/Disney Animated Canon ]]

* ''Fanfic/TheBoltChronicles'':
** When Mittens first sees Bolt's CosmeticCatastrophe in "The Makeover," her eyes pop and her jaw plummets before she subsequently breaks into hysterics.
--->It was then that Mittens saw him. Her eyes widened like soccer balls and her mouth dropped open like a trap door before she collapsed on her back, convulsed with hysterical laughter.
** When Mittens realizes that the morbidly obese LazyNeuteredPet cat she just met in "The Party" is her former street fling Tom from "The Clouds," her jaw is described as dropping "like a guillotine blade" in shock.
* A PlayedForHorror example happens in the {{Creepypasta}} ''Fanfic/ToyStory3AlternateEnding''. In the pasta, Woody smiles wider than it is humanly possible, in which [[{{Jawbreaker}} his jaw melts off of its hinges]] and falls on top of his lap.

[[/folder]]

[[folder: ''Franchise/Dragon Age'' ]]

* ''Fanfic/BeyondHeroes: Of Sunshine and Red Lyrium'': Happens to Varric during [[spoiler:his LoveEpiphany]]. It takes him a minute or two to realize he needs to close his mouth.

[[/folder]]

[[folder: ''Franchise/Godzilla'' ]]

* ''Fanfic/AbraxasHrodvitnon'': [[Characters/AbraxasHrodvitnonHumans Dr. Chen]]'s jaw falls during the FinalBattle [[spoiler:when she's watching the benevolent Titans kick Keizer Ghidorah's ass]].
* In the ''Fanfic/AbraxasEmptyFullness'' one-shot "Ain't That a Kick to the Head", [[Characters/AbraxasHrodvitnonMonsterX Monster X]]'s jaw, [[spoiler:MonstrousMandibles and all]], falls slack [[spoiler:when they realize that Rodan is ''courting'' them]].

[[/folder]]

[[folder: ''Webcomic/Hetalia Axis Powers'' ]]

* ''[[https://www.fanfiction.net/s/11886910/1/Gankona-Unnachgiebig-Unità Gankona, Unnachgiebig, Unità]]'': With how many times "jaw dropped", "mouth dropped", and their variations are present within the story, it's amazing the characters' mouths can still work properly.

[[/folder]]

[[folder: ''Western Animation/The Loud House'' ]]

* ''Fanfic/BurningSecret'': Lisa’s sisters’ jaws drop when she suggests Lincoln knows who started the fire.

[[/folder]]

[[folder: Franchise/Marvel Universe ]]

* ''Fanfic/APrizeForThreeEmpires'': [[Characters/MarvelComicsCarolDanvers Carol Danvers]]' jaw drops when she is introduced to the new Captain Marvel, Monica Rambeau.
-->She was a black woman in a black-and-white costume, and, when she chose to, she was composed of light. The Thing introduced her as the latest Avenger to the three, Nick, Logan, and Carol, who hadn't met her. "Carol Danvers, meet Captain Marvel."\\
Carol dropped her jaw, and then asked if Mar-Vell had retired, or suddenly gotten a new look? She meant it as a joke.

[[/folder]]

[[folder: ''Franchise/My Little Pony'' ]]

* ''Fanfic/MirrorsImage'': Has one for Rainbow Dash mixed with StunnedSilence when [[spoiler:Chrysalis signs a copy of the latest Daring Do book, revealing herself as the author of the Daring Do series.]]

[[/folder]]

[[folder: ''Franchise/Naruto'' ]]

* ''Webcomic/NaruHinaChronicles'':
** Both Sakura and Ino do this while shouting a BigWhat when Naruto asks Hinata to go on a date with him for the first time.
** Hideki has this reaction when he sees Naruto opening a scroll that only a Namikaze can open (unaware that Naruto is the son of Minato Namikaze).
** Both Naruto and Kiba have this reaction when Mina offers to let Naruto grope her breasts as a payback for [[ThanksForTheMammary Kiba accidentally grabbing Hinata's breast]].

[[/folder]]

[[folder: ''Franchise/Neon Genesis Evangelion'' ]]

* ''Fanfic/AsukaAndShinjisInfinitePlaylist'': Shinji's jaw drops open and he stares at his nearer friend when he finds out that neither of the four hundred children taking the Myojo Academy's entrance test will be allowed to leave temporarily due to a sudden and dangerous blizzard.
* ''Fanfic/NeonGenesisEvangelionGenocide'': Asuka gets angry whith Shinji staring at Rei instead of paying attention to her. When Shinji tries to explain it bothers him when he sees Rei alone, Asuka growls, turns around and marches straight towards Rei's desk. Shinji gets terrified at the thought of a public fight among them, but his jaw fells open in shock when Asuka asks Rei if she wants to join Shinji and herself for lunch.
* ''Fanfic/RiseOfTheMinisukas'':
** One of the Minisukas becomes slack-jawed when Rei calmly declares she will exact a terrible, frightening and dreadful revenge against the Minisuka "Prankster" who doodled on her face.
** The collective reaction in the Nerv's command center to Israfel being a Super Sentai team.
--->The NERV command center was dead silent after this spectacle. Not a word was spoken as jaws were collectively on the floor.\\
"Oh shit." Aoba managed to collect his thoughts first. "They're a super sentai team."
** Shinji -and everybody else- needs to collect his jaw when Toji and Kensuke perform a perfectly synchronized four-minute-long dance routine.
* ''Fanfic/RolePlayingEvangelion'': Fuyutsuki's jaw drops when he accidentally finds out that Kaji ''did'' put spy cams in Nerv's bathrooms.
-->"We can blame it on Kaji. He's always up to something anyhow. I wouldn't be surprised if he's got the bathrooms bugged."\\
"I had those removed. They were... inappropriate."\\
For a moment, Fuyutsuki went slack-jawed.

[[/folder]]

[[folder: ''Series/Odd Squad'' ]]

* ''Fanfic/MyDreamIsYours'': Olympia has this reaction to Oren talking about his supposed nightmare, as she realizes that he has her dream.

[[/folder]]

[[folder: ''Franchise/Star Trek'' ]]

* In the ''Series/StarTrekEnterprise'' ParodyFic ''[[https://archiveofourown.org/works/13109238 Farce Contact]]'', T'Pol tells Trip to relax his jaw while giving Vulcan neuropressure. As [[DistractedByTheSexy Trip finds this difficult]] she slips off her top, causing Trip's jaw to drop at the sight of the best Vulcan peaks outside of Mount Seleya.

[[/folder]]

[[folder: Unsorted ]]

* ''Fanfic/BatmanBeyondRevisited'': Jake's reaction to Inque's elegant dress.
* In ''ComicBook/{{Supergirl}}'' fanfic ''Fanfic/HellsisterTrilogy'', this is Kara's reaction when she finds out her old enemy Satan Girl has returned.
-->"Now--here I am," she said, taking a seat at the table. "I see you've got the Fatal Five out again. But you could probably handle them without me. And I've been brain-scanned twice in the last few minutes. It sounds like something's coming up for me, specifically. Why did you summon me?"\\
"Because of this," said Brainiac, and thumbed the controller again. The image of a masked woman came up on one of the holoscreens.\\
Supergirl dropped her jaw.\\
"Her!" she said, after she found her voice. "Great Rao, after all these years... her!"
* ''Fanfic/LuffysRenewedAdventure'':
** When Luffy performs the aforementioned Groin Attack, Coby has one of these, but Zoro is too busy laughing his ass off to do the same.
** When Luffy makes a deal with Morgan to give him a boat and let him leave the island if he wins…and then stands still and does nothing, everyone apart from Morgan does this. Then they have another one when he hits Luffy with his axe, and the axe shatters.
** Zoro, Nami, and Buggy’s crew all have this response when Luffy survives a direct, point-blank hit with the Buggy Ball without a scratch.
** Johnny and Yosaku have this reaction when Luffy catches the cannonball that Fullbody shoots at them.
** The Krieg pirates and Baratie chefs do this when Gin begins his TheReasonYouSuckSpeech about the crew.
** Everyone present has this reaction when Luffy swallows the [=MH5=] bomb and blows the gas back at Krieg, remaining perfectly unharmed thanks to his AcquiredPoisonImmunity.
* ''Fanfic/{{New Game Plus|One Piece}}'':
** When Luffy one-shots one of Alvida's lackeys, sending him flying through the walls of the ship and out into the horizon, Coby and the other two lackeys have this reaction.
** When Luffy responds to Alvida's FairestOfThemAll question with the truthful answer of Boa Hancock, Coby gapes at his gall at not answering Alvida. It grows further when he blatantly insults her.
** Helmeppo, Coby, and Ririka have this reaction when Luffy uses his Haki to knock out the Marines flanking Helmeppo. Coby's continues when he one-shots Helmeppo.
** Morgan's underlings have this reaction when Luffy insults him and announces his intention to defeat him.
** Buggy's three lackeys have this reaction when they announce their intention to rob them, and Luffy just laughs. Then they do it again after Zoro cuts one of their swords at the hilt.
** Buggy and his crew have this reaction when Luffy shows off Gear Third, and he only uses half of the normal amount of air.
** Under Even Evil Has Standards, Buggy is appalled at the interest rate Nami charges Luffy for repairs.
** Courtesy of his powers, Buggy's jaw actually separates from his head when he hears that the Training From Hell that Luffy is putting his crew through was learned through firsthand experience with his grandfather. His crew has this reaction when they learn who said grandfather is.
** Many of the ones watching have this reaction when Luffy protects the Baratie chefs from Don Krieg. Or rather after he catches all of the bullets that Krieg fires.
** The Baratie chefs have this reaction when Zeff announces that they'll be joining the Straw Hats, followed by cheering.
* Lady Silvermane does this in ''Fanfic/{{Whispers}}'' after learning of Princess Luna's betrayal, apparently needing her ''hoof'' to close it.
* Dia Anderson does this in ''Cowboy Noir'' when she finds out the first place prize of the singing contest is a satin choker with the biggest dang diamond she has ever seen.
* In ''WebVideo/DragonBallAbridged'', Krillin does this just like in [[Manga/DragonBall the original anime]] as mentioned above. However, this time it isn't because Maron is dumping him, [[spoiler:but because she reveals that she's actually an undercover government agent who pretended to be his girlfriend so she could investigate suspicions of Krillin being guilty of insurance fraud]].
* In ''WesternAnimation/TheLegendOfKorra'' fanfic ''Fanfic/BookFiveLegends'' this is Bolin's rather understandable reaction to seeing Korra and Asami's TheBigDamnKiss in the finale.
* In ''Fanfic/KaraOfRokyn'', Kara has this reaction when she walks into a dressing room and bumps into her scantily-clad rival wrestler.
-->Kara entered the dressing room, and found that she was not alone.\\
Jasmine was there, clad only in a short robe. She was looking straight at Kara.\\
Kara Zor-El dropped her towel and her jaw at the same time.
* ''Fanfic/TheRigelBlackChronicles'': James Potter stares for several seconds, having forgotten the partially chewed food in his open mouth, after Harriett tells him that [[spoiler: she's invited Caelum Lestrange to their house to brew potions together]].
* In ''Street Fighter''/''Evangelion'' crossover ''Fanfic/NeonGenesisEvangelionSenshiNoMichi'', Gouken is watching a news broadcast showing a battle between several humongous mechas and a giant alien in Tokyo-3. His jaw drops when the red robot uses one of his fighting moves on the alien monster.
* In ''Fanfic/JuniorOfficers'', Peso's beak drops when he learns that [[spoiler:Kitsune's pregnant]].
* In ''Fanfic/ShipsAhoy'', this is Otto's reaction to finding out that Olive and Oscar are in a relationship. In addition, he becomes at a loss for words for a couple seconds until he can find it in him to form a coherent sentence to go along with his reaction.
* ''Fanfic/OlivesLastPartner'':
** Olive and Oscar do a ''simultaneous'' jaw-drop when Otto tells them that the door to the Boiler Room was unlocked and that's how he was able to save them from drowning. They're quick to realize that [[CouldHaveAvoidedThisPlot they could have walked out of the room at any point and not have a]] NearDeathExperience [[CouldHaveAvoidedThisPlot in the process.]]
** Following the events of the ''Series/OddSquad'' episode "Mystic Egg Pizza", when Olive and Otto get sick and start throwing up, Oscar walks into Oprah's office with an Un-Smell-inator gadget and he's told of why they're vomiting. He then asks to try an egg salad pizza, and when he does, he finds it delicious, much to [[BigEater Otto's]] complete shock as his jaw drops.
* ''Fanfic/AllMixedUp'':
** In Chapter 6, Mariana Mag heads to Odd Squad with a case of eggs and magnifying glasses stuck on her fingers. Once she's cured, she asks to see Oprah, and when the Director obliges and goes down to the Lab to see her, all she can do is go slack-jawed in shock.
** Otto and Oscar also go slack-jawed later on, when Oprah tells them how Carlos was created.
* ''Fanfic/OSMUFanfictionFriction'':
** The reactions of Opal, Omar and Orla when they see Oswald in PerkyGoth attire, with leather wristbands and a shirt with a blazing skull on it, is to go slack-jawed.
** Orla and Oswald have this as a simultaneous reaction to watching the HotterAndSexier revival of ''[[ShowWithinAShow Bizarre Brigade]]''. Orla in particular is so appalled by what she's seeing that her jaw manages to ''hit the floor.''
* ''Fanfic/ThePalaververse'' From ''The End of the Day'', after Celestia gets some extremely unexpected help / sacrifice, her mouth opens in surprise:
--> Celestia realised her mouth had fallen open, and closed it. “I can’t accept this,” she said.
[[/folder]]

[[folder:Films -- Animation]]
* ''Manga/{{Akira}}'': Both Kaneda and Colonel Shikishima get one while watching Tetsuo's transformation during the climax. It's probably the most realistic and justified jaw drop in Anime history.
* ''WesternAnimation/{{Aladdin}}'': Genie does this. Twice.
** After Aladdin tricks him into granting a free wish by getting him and Abu out of the cave.
** The second time (shown in the page picture above), after Princess Jasmine starts [[WeNeedADistraction pretending she's in love with Jafar,]] interrupting Genie's attempt to explain to Jafar that he can't make people fall in love. Jafar closes his mouth like a window-shade.
** Jafar also has a mild (and more realistic) variant of this trope at the same time as Genie playing it straight, providing humorous contrast.
** He also does it briefly (complete with eyes bulging out) during his song "Friend Like Me", but it is just a part of his act. It's even literally in the lyrics.
--->'''Genie:''' ''[singing]'' So don't just sit there slack-jawed, buggy-eyed...
** Earlier in the film, Abu does this after watching Jasmine pole vault to the next rooftop.
* ''WesternAnimation/TheAngryBirdsMovie'': Hal's jaw drops on Bubbles when Leonard introduces himself.
* ''WesternAnimation/TheBookOfLife'': This is Xibalba’s reaction after [[spoiler:Manolo passes his challenge by taming the giant bull.]]
* ''WesternAnimation/{{Brave}}'': The triplets, along with the mounted deer head they were playing with, do this upon seeing Bear!Elinor for the first time.
* ''WesternAnimation/BrotherBear'': Has Denahi reacting like this [[spoiler:after seeing Sitka in his spirit form]]. [[spoiler:He closes his mouth anyway]].
* ''WesternAnimation/Cars1'': Played with when the Chick Hicks pit crew drop their bumpers upon watching Guido change tires ''like a boss''. To specify, it takes a crew of eight about 12 seconds to change the tires on a car... Guido did it in ''four''... '''''by himself.'''''
* ''WesternAnimation/CinderellaIIDreamsComeTrue'': Jaq and Gus do it when they witness Anastasia flirting with the baker and actually ''being nice''.
* ''WesternAnimation/{{Coco}}'':
** A skeleton guard's jaw drops (literally!) when he sees that Miguel, a mortal, has made his way into the Land of the Dead.
** Later, when Miguel tells Héctor that Ernesto [[spoiler:apparently]] is his great-great-grandfather, Héctor's jaw drops so far that his eyes fall into his mouth.
** Played straight in the climax: [[spoiler:Tias Rosita and Victoria react with shock at the woman behind the Riveras' ban on music singing for an audience at the Sunrise Spectacular.]]
* ''WesternAnimation/CorpseBride'': Parodied in the final scene, when it's revealed who killed the Bride, one of the members of the wedding's audience drops his jaw. ''Literally''. The jawbone falls to the floor in shock. Justified, as he's a skeleton.
* ''WesternAnimation/DespicableMe1'': A priceless look on Edith's face upon first meeting Gru.
* ''WesternAnimation/FindingNemo'': Near the end, this happens to a boy in the dentist's waiting room (he is reading an ''[[Franchise/TheIncredibles Incredibles]]'' [[EarlyBirdCameo comic]]), when he sees the brief scuffle between Nigel the pelican and P. Sherman the dentist through the fish tank's glass (it's located inside a large rectangular hole in the wall separating the dentist's office from the waiting room). But that's not what solicits this reaction. He doesn't see Nigel; he only sees the dentist moving around like a maniac while hearing the dentist's drill and Darla's screaming in the background. So, he has the Jaw Drop upon seeing that Sherman is apparently a DepravedDentist.
* ''WesternAnimation/GoofTroop''[='s=] ''WesternAnimation/AnExtremelyGoofyMovie'': There's a collective Jaw Drop at the beginning of [[GratuitousDiscoSequence the Disco scene]].
* In ''WesternAnimation/{{Hercules}}'': There are several instances of Hercules dropping his jaw, whether it's facing monsters or the seductive Meg.
* ''WesternAnimation/TheHunchbackOfNotreDameII'': A ''literal'' one from the Gargoyles at the end. [[spoiler: When ''Madeline'' tells them she'll take good care of Quasi and winks at them, making her the first person other than Quasi to notice that they are sentient, causing them extreme shock and their mouths fall off]].
* ''WesternAnimation/TheJungleBook'': Mowgli's jaw drops as Kaa hypnotizes him.
* ''WesternAnimation/KungFuPanda2'': Crane's lower beak drops when Tigress hugs Po. [[RunningGag The exact same thing happens again]] when Po hugs Tigress.
* ''WesternAnimation/{{The Little Mermaid|1989}}'': Sebastian is the jaw-dropper when he sees Ariel with Eric during the reprise of "Part of Your World". Scuttle does the jaw-closing honors.
* ''Franchise/TheLionKing'':
** ''WesternAnimation/{{The Lion King|1994}}'': When Simba realizes the lioness he's fighting is childhood friend Nala, they stop fighting and start laughing, prompting a jaw drop from Timon.
** ''WesternAnimation/TheLionKingOneAndAHalf'': Pumbaa gets a rather impressive one when Timon, scrounging for ideas on how to stall the hyenas until their trap is ready, ''proposes'' to Shenzi.
* ''WesternAnimation/MyLittlePonyEquestriaGirls1'':
** Twilight Sparkle and Spike both have this reaction when Human [[InexplicablyAwesome Pinkie Pie]] accurately sums up the plot of the movie [[IJustKnew based on "a hunch"]].
** Two jocks do this during the "Let's Fix It Up" number when Applejack casually picks up a table and walks off with it while they had to work together to lift one.
** ''WesternAnimation/MyLittlePonyEquestriaGirlsForgottenFriendship'': Pony Twilight's jaw hangs down when she sees Celestia opens the restricted area of the Canterlot Library. Sunset Shimmer does the honor of closing her mouth with a hoof.
* ''WesternAnimation/{{Pocahontas}}'': Meeko the raccoon, when the title character magically learns English through ThePowerOfLove.
-->'''WebVideo/TheNostalgiaChick:''' I'd like to thank the raccoon for channeling the audience's reaction.
* ''WesternAnimation/{{Robots}}'': One character's jaw drops on another character's head.
* ''WesternAnimation/SharkTale'': Angie arrives at Oscar's new penthouse with a lava lamp for him as a gift. Oscar is pleased and decides to "put it right next to my ''other one''. Cue a jaw drop from Angie as she watches Oscar place the pink lava lamp next to a ''HUGE green one that touches the ceiling''!
* ''WesternAnimation/TheSpongeBobSquarePantsMovie'': [=SpongeBob=] and Patrick famously do this after witnessing their car being eaten by a frogfish that is then eaten by a large eel.
* ''WesternAnimation/ToyStory2'': The main toys do a collective drop while they look at a group of Barbie dolls having a beach party in Al's Toy Barn.
* In ''WesternAnimation/TurningRed'', Mei and her friends' jaws all drop when they see [[spoiler:Tyler]] at the 4*Town concert.
* ''WesternAnimation/WreckItRalph'': Pac-Man does one after Ralph smashes the cake.
[[/folder]]

[[folder:Films -- Live-Action]]
%%
%%This folder has been alphabetically ordered. Please keep it that way when adding new examples.
%%
* Becky in ''Film/ClerksII'' when she sees that the guys have set up a donkey show in the Mooby's fast-food restaurant. [[HeadTiltinglyKinky "I'm disgusted and repulsed and I... can't... look... away..."]]
* A variation in ''Film/TheFlash2023''. At one point Barry Allen gets a tooth knocked out and sticks it back in with superglue. At the end of the movie he's apparently fixed the mess he made of the timeline [[spoiler:only to find that Batman now looks like Creator/GeorgeClooney.]] At that point, his tooth falls out again.
* Voldemort gets a minor one in ''Film/HarryPotterAndTheDeathlyHallows: Part 2'' when he sees [[spoiler: Harry willingly surrendering himself to Voldemort.]]
* Dr. Sattler does this in ''Franchise/JurassicPark'' when she sees the Brachiosaurus.
* ''Film/KongSkullIsland'': [[Characters/MonsterVerseSkullIslandExpedition Bill Randa]]'s jaw falls open the first time that he witnesses King Kong, and also when he witnesses a Mother Longlegs killing a soldier a short distance behind him via its bamboo-like leg impaling the soldier through the mouth while no-one was looking.
* ''Film/ManOfSteel''. Colonel Hardy does a faint but noticeable version when Faora-Ul steps out her spacecraft in a CustomUniformOfSexy.
* Rare live-action example in Disney's ''Film/MaryPoppins'': After witnessing their new nanny slide ''up'' the banister, Michael is left this way. Mary Poppins sees this and gives the memorable line: "Close your mouth please, Michael. We are not a codfish."
* ''Film/TheMask'', whose jaw hits the floor and his tongue unrolls like a carpet on seeing Tina and completed with an EyePop.
* ''Film/{{Matilda}}'' has Michael drop his jaw when he sees their [[BehindTheBlack father with blond hair]].
* In the horror spoof ''Film/MonsterInTheCloset'', the heroine goes into a slack-jawed trance every time she sees the hero [[TheGlassesGottaGo without his glasses]]. And then [[spoiler:the monster does the same thing...]]
* In ''Film/MuppetTreasureIsland'', this is Captain Smollet and Mr. Arrow's response to "Big Fat Ugly Bug-Faced [[EatsBabies Baby Eating]] O'Brien", a man so ugly he looks like an ''[[DudeLooksLikeALady attractive woman]]''.
* Both versions of ''Film/TheProducers'' feature an '''entire audience''' doing this during ''Springtime for Hitler'''s opening number.
* In ''Film/ReturnOfTheJedi'', Nien Nunb does this when he sees that they are about to hit a low ceiling. They just barely manage to tip the surface.
* Combined with DramaticDrop in ''Film/Terminator2JudgmentDay''. Dr. Silberman pulls the cap off a hypodermic needle with his teeth (because Sarah Connor has broken his arm) so he can sedate her. When he sees the T-1000 walk through a barred door, the cap drops out of his mouth.
* Played with in ''Film/ThorRagnarok'' which opens with Thor imprisoned in a gibbet cage relating [[PreviouslyOn The Story So Far]] to his cellmate, who is revealed to be a skeleton. At one stage its jawbone falls off [[EmpathicEnvironment as if in amazement at the story Thor is relating]].
* More noticeable in ''Film/{{Watchmen}}'' when Night Owl II watches Silk Spectre descend the stairs in her {{Stripperiffic}} outfit.
* In ''Film/WhoFramedRogerRabbit'', [[PrivateDetective Eddie]] drops his jaw when he first sees [[TheVamp Jessica Rabbit]] (he had assumed she was a [[SpeciesSurname Rabbit like Roger]]); a rather miffed WesternAnimation/BettyBoop closes his mouth shut.
[[/folder]]

[[folder:Literature]]
* Throughout the ''Literature/AuntDimity'' series, Lori is very apt to do this when given unexpected or astonishing information. Humourously related to her inability to conceal her feelings.
* ''Literature/GhostInTheNoondaySun:'' After Oliver tells First Mate Ringrose that he marked the spot where he thinks the treasure is buried by leaving his jackknife pointed in that direction, Ringrose's jaw drops "like a trapdoor." He then reveals that [[NoGoodDeedGoesUnpunished he saw the jackknife lying there, thought Oliver had lost it, and picked it up to return to him later.]]
* ''Literature/HorridHenry'''s jaw drops in one story after noticing a coin while shaking Perfect Peter's moneybank.
* In ''Literature/HeartOfSteel'', Alistair has this reaction at the end when he sees [[SheCleansUpNicely Julia all dressed up for dinner]].
* In the ''Literature/WarriorCats'' book ''Firestar's Quest'', Firestar's jaw drops open when he realizes that Smudge's home is the former [=SkyClan=] camp.
* In the ''Soldiers of Barrabas'' novels, [[LadykillerInLove Alex Nanos]] takes his friends to see the beautiful stripper he's smitten with. They inform him that technically a stripper is expected to remove her clothes in public.
-->"Did you see anything hit the floor after she came on stage?"
-->"Only [[EatingTheEyeCandy your jaw and mine]]."
* ''Literature/TheMysteriousBenedictSociety'':
** The original book:
*** The jaws of many of the students of the Learning Institute for the Very Enlightened drop when Reynie approaches Mr. Curtain from the front while he's sitting in his favorite spot, something no student has ever done before.
*** Martina's jaw drops with disbelief after S.Q. asks Mr. Curtain if they should be asking permission to put things in people's minds.
*** Sticky's jaw drops when Reynie tells him that he should try to resist the Whisperer and stretch out the session to buy him time to signal Kate and Constance.
*** Mr. Curtain's jaw drops after, when having failed to open his secret door with the code-word "control," Reynie (correctly) suggests trying it in Dutch instead (you just add an "e" at the end.)
** ''The Perilous Journey'':
*** Risker nearly drowns after trying to retrieve what he thought was a diamond, but turns out to obviously be a fake because it's floating on the water. When Reynie tells him that he had no idea whether it was a real diamond or not, his jaw drops.
*** Kate's jaw drops after [=McCracken=] pulls a razor-sharp pencil out of a wall it was firmly lodged into "as easily as one might draw a thumbtack from a bulletin board."
* ''Literature/{{Clementine}}'':
** In ''Completely Clementine'', Margaret tells Clementine that she got her mother to let her go shopping for new shoes for her upcoming wedding with her boyfriend. Clementine doesn't think much of this, in fact, she considers shopping for shoes to be punishment. Then Margaret tells her that they're going to be high heels and her jaw drops.
--->''It took all my power to crank it back up to my chin by the time we pulled in to school.''
** In the same book, Clementine's mother's mouth is described as forming an "O" after Clementine and Clementine's father present her with "The Pentagon," a secret project that they've been working on, a five-sided table.
* In the picture book ''The Rabbit Listened'', the young boy Taylor's jaw drops in shock and upset after a flock of crows unexpectedly knocks down the amazing block tower he created.
* ''Literature/{{Dinotopia}}'': Throughout ''Windchaser'', the first of the digest novels, London pickpocket Hugh has learned about a Dinotopian philosopher and diplomat named Laegreffon and developed a respect for he and his sayings (many of which he agrees with, based on his own experiences in life); in the end of the book, he winds up going to study under him. But before that, in the penultimate chapter, Windchaser the Skybax informs Hugh that he's made a critical error in his assumption about the "man", resulting in the trope coming into play...
-->'''Hugh''': "I wonder what Laegreffon would have said about all this. That's one bloke I really wouldn't mind spending time with, ya know? If he and I were in London together, we'd kick up quite a ruckus!"
-->'''Windchaser''': (''laughs'')
-->'''Hugh''': "Here, now! Are you laughin' at me?"
-->'''Windchaser''': "''Whhhhhoooooo elllllssse?''''
-->'''Hugh''': "And what exactly is so funny?"
-->'''Windchaser''': "''Lllllaegggrefffonnnn. Nnnnottttt bbbbloke! Tttttriccerattopsssss!''"
-->'''Hugh''' (jaw drops): "He's a ''dinosaur''?"
[[/folder]]

[[folder:Live-Action TV]]
* ''Series/TheBigBangTheory'': Has Sheldon do this after he tempts Amy to try and ruin one of his favourite movies with him lampshading this at first by telling her to take his jaw and drop it, and then playing it straight. After this Amy does the jaw closing honors.
* ''Series/{{Blackadder}}'': Happened near the end of the season 4 episode "[[Recap/BlackadderS4E2CorporalPunishment Corporal Punishment]]", when [[spoiler:Blackadder returned to the dugout when George and Baldrick thought he was dead, whereupon Blackadder took the opportunity to make use of his trademark snarkery: "Still the striking resemblance to guppy fish at feeding time."]]
* ''Series/TheBoys2019'': When Billy Butcher and Hughie Campbell enter an exclusive club for super-powered people, Hughie witnesses several sexual acts and immediately gets distracted by a couple shamelessly having sex mid-air. Billy promptly tells him to "Pick your jaw up off the floor."
* ''Series/BuffyTheVampireSlayer'': In "[[Recap/BuffyTheVampireSlayerS4E12ANewMan A New Man]]", Giles holds a feather duster in his mouth while searching through a TomeOfEldritchLore. It falls out during a subsequent OhCrap exclamation.
* ''Series/Daredevil2015'': Karen does a very subtle jaw drop in the last scene of season 2 when Matt reveals to her that he's the Devil of Hell's Kitchen.
* ''Series/DoctorWho'': In a rare case of this trope being played not for laughs, but for ''horror'', the 60th Anniversary Special episode ''[[Recap/DoctorWho60thASWildBlueYonder Wild Blue Yonder]]'' has [[spoiler:the Not-Things, one of them copying the Fourteenth Doctor's form, explaining that he hasn't yet fully figured out the Doctor's form, and that "once [he] figures out the arms... then [he] has a problem with the '''jaw'''...", and said jaw drops nearly to the floor in horrific UncannyValley.]]
* ''Series/{{Emergency}}'': This appeared a few times, mostly under conditions that would make pretty much anybody get a little slack-jawed:
** Johnny, Roy, and Chet were on a fishing trip and have to take a couple of accident victims to the local doctor, a "Dr. Frick." Johnny expected to see a middle-aged family doctor type, but when the doctor appeared he was about thirty and looked like a classic hippie, right down to the long fuzzy hair. Johnny was dumbstruck.
** One call for Station 51 required them to get a man out of his car after a minor accident left the driver's side door jammed. They got the door open without too much trouble, and the driver got out and stood up ... and up ... and UP. Both Johnny and Chet did perfect "oh my god" jaw-drops when they saw how tall the driver was. It was an understandable reaction since the car wasn't very large and the driver was [[TheCameo basketball star Kareem Abdul-Jabbar in a cameo appearance]].
* ''WesternAnimation/FetchWithRuffRuffman''': The episode "Ruff's Big Break" shows Nina doing this for a split second when she and the Fetchers saw Ruff wearing a cast and [[ConeofShame cone]] from hurting himself.
* ''Series/TheJoeSchmoShow'': The second season episode ''Last Chance for Love'', or ''Joe Schmo 2''. Eleanor, the weeper, gets out her "coupon book of love" at the suggestion of Austin, the bachelor that she and the other girls on the show are supposedly pursuing.[[note]]''The Joe Schmo Show'' being a parody of reality shows in which most of the cast are actually actors performing to a script except for the chosen schmoes.[[/note]] She finds that one of the coupons, for a ten-minute foot massage, is missing. Cammy, the airhead, says that she had already used it with Austin, that she "thought it was okay," at which point the mouth of that season's Joe Schmo, Tim, forms a perfect jaw-dropping oval at what's going on around him.
* ''Series/MysteryScienceTheater3000'': In "[[Recap/MysteryScienceTheater3000S05E17BeginningOfTheEnd Beginning of the End]]", Mike decides to call down to Deep 13 on his own initiative to complain about the movie. When Mike and The Bots learn what the Mads get up to when they think no one is looking, it is so horrifying that Crow's jaw drops and Mike has to close it up for him.
* ''Series/TheMysticKnightsOfTirNaNog'': Very subtle but still hilarious. When Prince Garrett (arrogant ally-turned outright enemy-turned humbler and redeemed) is informed that he is destined to become a Mystic Knight as well, his eyes widen, his mouth gapes, and for the first time he's actually rendered speechless. He gets over it quickly, but still a great bit from the actor.
* ''Series/MarriedWithChildren'': Marcy's jaw was stuck in the drop position for a long time after she and Steve came home one night to find their house gone.
* ''Series/OutOfJimmysHead'': In the pilot movie ''Re-Animated'', Golly's jaw drops to the floor when he sees his TotallyRadical reimagining of himself from when Sonny was in charge of Appleday Studios.
* In "[[Recap/StarTrekTheNextGenerationS3E21HollowPursuits Hollow Pursuits]]" from ''Series/StarTrekTheNextGeneration'', Troi has this reaction upon seeing Barclay's "Goddess of Empathy" simulation of her.
* ''Series/StarTrekVoyager'': Captain Janeway has this reaction when Q says he wants her to be the mother of his child. It's not quite visible as he's got her bent over in a ''Film/GoneWithTheWind'' pose. In another episode, Neelix is communicating with an alien race that speaks partially through body language. He adopts a number of postures while speaking to their consul, ending with him tilting his head and standing with his mouth open. MatchCut to Janeway watching this in amazement, mouth open and [[QuizzicalTilt head tilted to the side]]. And then there's the time Neelix offered her his "Even Better Than Coffee" substitute...
* ''Series/WorstCooksInAmerica'', Sarah's jaw drops in "Blast from the Past" from Season 6 after Tyler tells her that the truffle he's holding is worth $350.
[[/folder]]

[[folder:Music]]
* Mentioned in ''Music/{{Angus McSix}}'s'' "Laser-Shooting Dinosaur":
--> Here I come, drop your jaws to the floor\\
I'm riding on my mighty laser-shooting dinosaur
[[/folder]]

[[folder:Pro Wrestling]]
* Wrestling/MollyHolly did a lot of this in 2002 when she was in her prude persona, usually after one of the MsFanservice Divas removed her top to flaunt her own sexuality at her.
* On Wrestling/{{GLOW}}, during Ashley Cartier's "Asking Ashley" segments, there would always be a letter from a guy named Tim. Tim would mention some item, then what he'd want to do with it - namely use it as a NoodleImplement for sex. Ashley's jaw would drop as she continued reading silently, ending with her tearing up the letter and chastising Tim for his lewd thoughts.
* When Wrestling/MikeAdamle was named GM of Raw, Wrestling/JohnCena and Wrestling/{{Batista}} could produce nothing but genuine expressions of [[http://www.wrestlecrap.com/induction%20files/adamle/adamlenewgm.jpg complete confusion]].
* When the backstage segment supposedly showing the Wrestling/BigBossMan reuniting Wrestling/AlSnow with his precious dog Pepper as promised instead concluded in [[ExactWords yet another]] example of Boss Man being the {{Kayfabe}} worst person ever, the Smackdown cameras cut to Wrestling/JerryLawler[[note]]who was usually obnoxiously pro-heel at the time[[/note]] looking hilariously gobsmacked at the announce table.
* In ''Wrestling/{{WWE NXT}}'', this Wrestling/TheVelveteenDream's reaction to [[Wrestling/TrevorMann Ricochet]] jumping out of the ring and landing a perfect front flip right in front of him, essentially refuting Dream's own claims that he could do better anything Ricochet could do.
* [[CreepyDoll Abby the Witch]], of all "people", has one when Wrestling/BrayWyatt first reveals [[DemonicPossession The Fiend]].
[[/folder]]

[[folder:Theatre]]
* In ''Theatre/TheRobberBridegroom'', according to the song "Once Upon the Natchez Trace," the moon had this reaction to Rosamund's beauty.
-->One night, she's sleepin' in the raw\\
The moon looked down, and dropped his jaw\\
He roasted hot as the sun from the sight he saw
[[/folder]]

[[folder:Video Games]]
* ''VideoGame/SuperSmashBrosBrawl'':
** Wario humorously does this after [[spoiler:seeing King Dedede being assisted by Luigi and Ness, both of whom Wario had previously turned into trophies]]. He also does it briefly for a taunt in gameplay.
** King Dedede gets one when Kirby suddenly appears on the trophy carrier he's driving. Given their [[FriendlyEnemy relationship]], this one borders on OhCrap.
* ''VideoGame/SuperSmashBrosUltimate'':
** DK and Diddy do this in the reveal trailer for King K. Rool when Dedede removes his disguise.
** In Banjo’s reveal trailer, DK, Diddy, ''and'' King K. Rool do this when the Duck Hunt Duo remove their disguises.
* King Dedede does this in the Extra Mode unlock screen of ''VideoGame/KirbysDreamLand''. This has since gone on to reappear as a keychain in ''VideoGame/KirbyTripleDeluxe'' under the name "Shocked Dedede" and again as a sticker in ''VideoGame/SuperKirbyClash'', and was even recreated after defeating Giant King Dedede's Revenge in ''VideoGame/KirbysBlowoutBlast''.
** He hilariously does it again in ''VideoGame/KirbysReturnToDreamLand'' when the BigBad [[spoiler:Magolor]] [[TheReveal shows his true colors.]]
* ''Franchise/TheLegendOfZelda'' has several:
** ''VideoGame/TheLegendOfZeldaOcarinaOfTime'': Link's jaw drops when he sees the combined form of Twinrova.
** ''VideoGame/TheLegendOfZeldaTwilightPrincess'':
*** Link's jaw drops when he sees Armogohma's [[spoiler:wimpy second form.]]
*** Link has this reaction when he sees [[spoiler:Midna's [[SheCleansUpNicely true form]]. Lampshaded by Midna; she makes fun of him for being {{stunned speechless}}]].
*** Midna gets an at least somewhat serious one when she discovers that Zant has broken the Twilight Mirror.
** ''VideoGame/TheLegendOfZeldaSkywardSword'': Link [[OhCrap does this]] when [[spoiler:Groose skydives into Faron Woods, and crashes into Link]].
* The EvilChancellor in ''VideoGame/ChronoTrigger'' has a pretty good one, seen (among other times) when Crono and gang escape through a time portal.
* ''VideoGame/DonkeyKongCountry2DiddysKongQuest'': Diddy and Dixie do this before every boss fight. Considering that ''Donkey Kong Country 2'' was made by Rare which also did ''VideoGame/{{Battletoads}}'', this is not surprising.
* This is comically exaggerated when the final boss of ''VideoGame/{{Rayman}} 3'' goes OneWingedAngel. Rayman's jaw literally hits the ground. Not entirely surprising, considering [[AttackOfTheFiftyFootWhatever how freaking huge]] the boss is.
* In ''VideoGame/SuperGemFighter'', this befalls on anyone who gets hit with [[Franchise/StreetFighter Akuma or Dan Hibiki's]] special throw command, which is either Akuma giving a speech or Dan's [[DreadfulMusician horrid singing]]. As the context of the game is ''comedy'', it's always a good kick to see the usually ComicallySerious Akuma get hit with it.
* In ''VideoGame/{{Battletoads}}'', the Toads do a combination of this and {{Eye Pop}}ping when a boss makes his/her entrance. This carried on into the CrossOver game ''Battletoads & VideoGame/DoubleDragon'', with the Lee brothers doing the same thing.
* ''VideoGame/{{Catherine}}'':
** Vincent does an impressive one when he first wakes up and [[BedmateReveal sees Catherine in his bed]].
** In the [[spoiler:Bad Cheater]] ending, Vincent runs out of the Stray Sheep [[spoiler:hallucinating that Catherine is just waiting for him outside after rejecting his marriage proposal to her]] and promptly gets run over by a car. Orlando pulls a wonderful JawDrop at the sound of his friend getting squashed.
--->'''Orlando:''' [[OhCrap Oh fuck.]]
** Happens again in [[spoiler: both Freedom Endings (seeing as the True one is the same as the Good one but with an additional scene after the credits)]] when Jonny confesses to [[spoiler:having asked Katherine out]]. Both Vince and Orlando pull a magnificent, in-tandem dual JawDrop.
** One of the stills during the credits of the [[spoiler:Freedom True]] ending also shows Boss completely astonished (and with a proper JawDrop) at the fact that [[spoiler:Feather won her wrestling match]].
* Nihlus in ''VideoGame/{{Mass Effect|1}}'' gets a very bizarre equivalent when he first sees [[EldritchAbomination Sovereign]]. His side mouth mandibles twitch in an utterly alien gesture, which, however, leaves very little room to interpretation.
* In ''VideoGame/HolyUmbrella'', when the protagonist is surprised, his jaw drops as his face bulges out of the normal bounds of the CharacterPortrait.
* Varric delivers a ''verbal'' one in ''VideoGame/DragonAgeII'', upon learning that Guard-Captain Aveline wants a romance with one of her subordinates.
-->"I think my jaw just landed in the Deep Roads somewhere."
* ''VideoGame/MegaManLegends'': Teisel Bonne when he learns his attack on the city was foiled by a mysterious blue boy.
[[/folder]]

[[folder:Web Animation]]
* ''WebAnimation/DeathBattle'': This is [[Franchise/{{Transformers}} Starscream's]] reaction to [[WesternAnimation/MyLittlePonyFriendshipIsMagic Rainbow Dash's]] [[SuperSpeed Sonic]] [[EverythingsBetterWithRainbows Rainboom]].
* ''WebAnimation/HelluvaBoss'': In season 1 episode 8, when Loona is feeling like a fish out of water as an introvert at a rowdy party, this is her reaction to Bee-Lzebub's colourful way of talking, specifically the line "I feel like I went a little too far with the confetti this time, though. I have, like, a rainbow in my vagina right now."
[[/folder]]

[[folder:Webcomics]]
* In ''Webcomic/TheAdventuresOfDrMcNinja'', the death of [[spoiler: King Radical]] in the final chapter causes some dropped jaws, especially Gordito's. His, in particular, is probably due to not just the dramatic event but the way in which it is achieved: [[spoiler: Dr. [=McNinja=] sneaks behind {{Dracula}}, grabs him by the ankles and swings him mouth first at King Radical, making him accidentally bite him into a vampire. Then he grabs the pope and throws him at King Radical, [[HolyBurnsEvil making him explode]].]]
* ''Webcomic/BetterDays'': Persia grew up shepherded from one beauty contest to another by her mother Bobbi, which was the last time Fisk had seen her. Persia came to Sheila's wedding a grown young woman, and still drop-dead gorgeous. Fisk gets one look, and his jaw drops. Lucy politely closes it with one finger.
%%* Occurs in some strips of ''Webcomic/BobTheAngryFlower''.
* ''Webcomic/ElGoonishShive'':
** [[http://www.egscomics.com/?date=2007-09-21 This installment]] has Susan's reaction to the principal's double standard.
** Also, [[http://www.egscomics.com/?date=2008-08-08 this strip]] has Elliot's reaction to Susan's deductive skills.
** [[http://www.egscomics.com/?date=2010-05-07 This one]] has Sarah and Grace's reaction to Susan's critique of ''Film/ThePrincessBride''.
** And [[http://www.egscomics.com/index.php?id=1806 this one]] has three for the price of one when Elliot reveals Ashley saw him transform. Then he closes Tedd's mouth.
** [[http://egscomics.com/?date=2004-06-21 There's the earliest]] one in ''EGS'', complete with high-five.
* ''Webcomic/{{Freefall}}'': Winston might be a seasoned parasitologist, but the sight of StarfishAlien Sam with his pants off leaves him agape and stammering in horrified disbelief. He got off light -- others who've seen what Sam looks like outside his containment suit have tried to gouge out their eyes.
* ''Webcomic/GirlGenius'':
** Agatha in does it [[http://www.girlgeniusonline.com/comic.php?date=20070427 here]] upon first seeing [[spoiler:the fake Heterodyne]], and Zeetha closes it with the comment that she should face the "new era" with some dignity.
** [[http://www.girlgeniusonline.com/comic.php?date=20111024 One of the Mechanicsburg councilors reacts with slack-jawed shock]] to [[spoiler:Gil]]'s rampage.
** And before that, the jaws drop on pretty much [[http://www.girlgeniusonline.com/comic.php?date=20071128 everyone in Mechanicsburg]] when [[spoiler:Gil summons up a lightning strike to destroy the lead war stomper.]]
** When Sanaa sees that Moloch is actually incredibly competent [[http://www.girlgeniusonline.com/comic.php?date=20120402 rather than the bumbling fool she thought he was]] her mouth goes slack.
** [[http://www.girlgeniusonline.com/comic.php?date=20120528 Goomblast takes the cake.]] When it comes to jaw-dropping, that huge mouth of his blows the competition away.
* ''Webcomic/{{Homestuck}}'':
** Karkat, after witnessing [[spoiler:two of his comrades die at the hands of another]], delivers the mother of all [[MoodWhiplash whiplashes]] with [[https://www.homestuck.com/story/3349 this face]].
** Later on, Roxy goes ":O" for three lines running after John mentions [[ScaledUp the precise nature of cherub sex]].
** We see Roxy do an actual [[https://www.homestuck.com/story/7545 physical drop]] when she see's [[spoiler:Vriska Serket]] fire her stolen TeleportGun at Dirk.
** The floating innuendo factory known as [[spoiler:Jasprosesprite^2]] causes these en masse. [[https://www.homestuck.com/story/7648 Starting]] with Calliope, [[https://www.homestuck.com/story/7649 then]] Roxy (again), [[https://www.homestuck.com/story/7650 before]] reaching critical drop levels with Jane, John and a X5 COMBO with the above four ''and'' Tezeri.
* ''Webcomic/MagickChicks'': This winds up happening a few times:
** Just about everyone present was [[StunnedSilence stunned speechless]] when Melissa [[http://www.magickchicks.com/strips-mc/the_dud laid Rain out in seconds flat]], [[BeatThemAtTheirOwnGame without having to cast a single spell.]]
** About a week later, [[spoiler:[[ADarkerMe Dark]]]] Skye stunned Callista at her own birthday party, [[http://www.magickchicks.com/strips-mc/source_of_entertainment by frenching her girlfriend right in front of her]]. Then left everyone slackjawed [[http://www.magickchicks.com/strips-mc/see_you_monday when she departed on a wolfback.]]
* ''Webcomic/MeatShield'': [[http://www.meatshield.net/archive/temp-headline-for-011510-last-of-buffer/ Jaine's jaw drops]] when she learns that [[spoiler:Dhur owes about 50,000 crowns back home]].
* [[ActionGirl Haley's]] jaw drops in ''Webcomic/TheOrderOfTheStick'' strip [[http://www.giantitp.com/comics/oots0250.html "Oh no, he DIDN'T!"]], when [[OnlySaneMan Roy]] finally snaps and tells KnightTemplar Miko to shove it. Then Haley hugs him.
* From [[http://penny-arcade.com/comic/2000/05/12 a strip]] of ''Webcomic/PennyArcade''.
-->'''Tycho:''' Ungaah ung Ungah!\\
'''Gabe:''' Shut up and [[EyePop help me find my goddammed eyes]].
* Jin of ''Webcomic/WapsiSquare'' looks like [[http://wapsisquare.com/comic/where-do-i-start/ this]] after encountering her mother alive and well.
* When Doc from ''Webcomic/TheWhiteboard'' gets a genuine kiss from a lady polar bear, [[https://www.the-whiteboard.com/autotwb2190.html jaws drop EN MASSE]].
* ''Webcomic/YetAnotherFantasyGamerComic'':
** Beholders have a pretty large jaw, so when Bob lets his drop, [[http://yafgc.net/comic/0349-say-what/ it's impressive]].
** Lewie the Lich, being mostly a [[DemBones skeleton]], can literally [[http://yafgc.net/comic/0635-behold/ drop his jaw to the floor]].
[[/folder]]

[[folder:Web Original]]
* A decidedly non-comedic version with the Internet meme [[http://knowyourmeme.com/memes/omg-cat OMG Cat]], featuring a cat whose jawbone had been dislocated. The image resulted from her owner putting out an urgent call for help to [[Website/FourChan 2chan]], asking them what to do since this happened at night when the animal hospital was closed. Thankfully she made a full recovery.
[[/folder]]

[[folder:Web Videos]]
* This happens a lot to ''WebVideo/TheNostalgiaCritic''.
** He jaw-drops during his ''[[Film/TheNeverendingStory Neverending Story 3]]'' review when the Rockbiter starts singing "Born to be Wild". About a 1 feet drop. It's a simple special effect, but quite effective.
** From the ''WesternAnimation/{{Captain Planet|and the Planeteers}}'' review:
--->'''Critic:''' So, Captain Planet. What other issues are you going to talk to grade-school kids about?\\
'''Todd Andrews:''' AIDS?\\
''[drum beat as the Critic's jaw drops]''
** And in ''Return of the Nostalgic Commercials'':
--->'''Critic:''' I mean, can you think of any other commercial that can be taken the wrong way so easily?\\
'''Man in the next commercial:''' Just wait'll you see what I've got. ''[fishes out a box]'' It's the Wunder Boner!\\
''[dramatic sting as the Critic's jaw drops]''
** During his review on ''WesternAnimation/TomAndJerryTheMovie'', this is his reaction to the silent duo suddenly [[SuddenlySpeaking singing]] about how they are now best friends.
* When Creator/BradJones reviewed ''[[Franchise/WinnieThePooh Too Smart for Strangers]]'' on ''WebVideo/DVDRHell'', his jaw dropped when Pooh started singing a song about kids getting molested. He was joined in by his wife, [[AnimalReactionShot his cat Lloyd]], and ROB the robot. In an interview, Brad said that this was his reaction in real life. He paused the DVD and called Jillian in to watch the rest of it.
* WebVideo/{{Markiplier}}:
** His jaw dropped when he played the sixth night of ''VideoGame/FiveNightsAtFreddys2'' and learned the big deal PlotTwist:
--->'''Markiplier:''' [[spoiler:It ''is'' a prequel!]]
** He got one in earlier in the fourth night of the [[VideoGame/FiveNightsAtFreddys first game]] as he realizes what's [[KilledOffForReal going to happen to Phone Guy.]] [[spoiler: Then Foxy gets him.]]
* "[[https://www.youtube.com/watch?v=YMRhPl2b-aU Military Bronies React to]] [[Recap/MyLittlePonyFriendshipIsMagicS3E7WonderboltsAcademy Wonderbolts Academy]]": As soon as Lightning Dust mouths off to Spitfire, the commentators' jaws drop in a MassOhCrap.
* WebVideo/{{Kitboga}} is a scambaiter popular on Website/{{Twitch}} and Website/YouTube. He often portrays himself as crazy characters such as a cranky old man named "[[PunnyName Billy Maizear]]." In the [[https://www.youtube.com/watch?v=nl-_LBx_tpM animated version]] of "[[https://www.youtube.com/watch?v=Pwhzqepj2PM Buying Gift Cards Instead of Hot Dogs (for Scammers)]]," Billy Maizear's son Morty's jaw drops when he takes off his shirt, revealing himself to have "the body of a Greek god."
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/CaptainPlanetAndThePlaneteers'': In "Missing Linka", Linka investigates the sudden sickness in her hometown with some help from her older brother Mishka. Wheeler [[RelativeError mistakes Mishka for Linka's boyfriend]] and his jaw falls open when Linka finally corrects the misunderstanding.
* Creator/TexAvery favored them in his [[WesternAnimation/TexAveryMGMCartoons MGM work]]. See the ''WesternAnimation/{{Droopy}}'' cartoons, for example.
* A surprisingly dramatic version happens when Jacob Marley visits Scrooge in Creator/RichardWilliams' version of ''Literature/AChristmasCarol''. His jaw is literally unhinged from his skull and has a cloth to keep it shut.
* ''WesternAnimation/{{Animaniacs}}'' uses this a lot, too. In the episode "Meet Minerva", this is a squirrel's reaction to seeing the title character clad in nothing but a towel.
** At one point in the ''WesternAnimation/PinkyAndTheBrain'' short "The Brain's Apprentice," not only does Pinky's jaw drop, but also his nose and his ''eyes''.
* ''WesternAnimation/{{Arthur}}'':
** Arthur and Buster each decide that their group of friends prefers the other character, and so essentially switch personalities in an attempt to seem more likable. When the two each enter [[LocalHangout The Sugar Bowl]] behaving exactly as the other would, all of their friends are completely flabbergasted and [[OnlyKnownByTheirNickName the Brain's]] mouth falls open in shock. Francine closes it for him.
** In the episode "Arthur's Substitute Teacher Trouble," when the class finds out that their substitute teacher will be Mr. Ratburn's sister, ''Miss.'' Ratburn, Buster's jaw drops. He closes it back up only for it to drop again.
** In "Arthur's First Sleepover," Buster does highly exaggerated, cartoony versions of both this and an EyePop in his nightmare in which he discovers that Arthur and the Brain are aliens, only to wake up, comment "That was scary," and flop back over to sleep.
* ''WesternAnimation/AvatarTheLastAirbender'':
** Zuko has this reaction when he walks into Sokka's tent (after bumping into Suki), and finds him ReadyForLovemaking.
** Sokka himself has had a number of these moments throughout the series, one of the most memorable being his reaction in "The Headband" to Aang enrolling in a Fire Nation school.
** In the SequelSeries ''WesternAnimation/TheLegendOfKorra'', episode "A Breath of Fresh Air", everyone present is completely shocked by the fact that [[spoiler:Bumi can now airbend, despite not previously being an airbender]]. Bolin, Meelo and Ikki's faces are especially hilarious.
* ''WesternAnimation/{{Cellbound}}'': The protagonist, a prisoner trying to escape jail inside a TV, is joyously pondering all the wonderful places in the world he's going to visit... then he slowly realizes that the TV has been delivered into the jail warden's office. Cue him baring his fangs and doing one heck of a jaw drop.
* Parodied in ''WesternAnimation/{{Chowder}}'', when Mung, Chowder, and Gorgonzola wouldn't stop dropping their jaws several times to the floor.
* ''WesternAnimation/CliffordTheBigRedDog'': Jetta's jaw drops in "A Friend in Need" after she arrives back at the park and sees how Emily Elizabeth and the others finished cleaning it up for her, despite her insistence that she didn't need help.
* An episode of ''WesternAnimation/TheCritic'' features a costume party with the main character's father dressed as Film/TheMask. After he sees a woman, his jaw drops. Jay tells him to control himself until he sees the dessert cart and his jaw drops.
* Porkchop from ''WesternAnimation/{{Doug}}'' does one of these when he found out that Stinky the cat is a [[YourTomcatIsPregnant girl]] and had kittens.
* Parodied in ''WesternAnimation/FamilyGuy''. In order for the others to believe that Peter's new friend is actually Jesus, he [[BreastExpansion increases Lois' bust size several sizes]] and Brian's jaw literally drops to the table.[[note]]Hilariously, with a loud THUD.[[/note]]
** One episode started with the Griffin family watching an episode of ''Series/EightIsEnough'' which shows the father slapping his daughter eight times and another one of the daughters stops him and tells them that "eight is enough" and they all laugh. Cut to the whole family (except Stewie, who has a big smile on his face) looking at the TV with their jaws dropped.
* In the ''WesternAnimation/FantasticFourWorldsGreatestHeroes'' episode "[[Recap/FantasticFourWorldsGreatestHeroesZonedOut Zoned Out]]", [[RubberMan Reed]] does a rather impressive one upon seeing the large crowd of Negative Zone bugs after Ben's energy pack.
* ''WesternAnimation/HerculesTheAnimatedSeries'': There are several instances of Hercules dropping his jaw, mostly when he's facing monsters.
* In the ''WesternAnimation/HouseOfMouse'' short "Rollercoaster Painters", Mickey and Donald do this when [[DarkHorseVictory Goofy wins the lifetime pass]].
* In the ''WesternAnimation/JohnnyBravo'' episode "Johnny Meets Farrah Fawcett", Johnny's jaw drops progressively lower and lower as he watches Farrah Fawcett leave her car, and finally drops all the way to the ground as she's completely revealed.
* ''WesternAnimation/JusticeLeague'':
** A subtle joke in the episode "In Darkest Night": Green Lantern is accused of destroying a planet and killing its three billion inhabitants. (To be fair, it was an accident. [[spoiler:And a hoax.]]) At the trial, a video is shown of Green Lantern's ring blowing the planet to smithereens. Superman, The Flash, and J'onn Jonnz all drop their jaws in horror. Hawkgirl, however, is [[ProudWarriorRaceGirl not fazed in the slightest]].
** And it happens again when the League [[spoiler:proves that the planet was never destroyed and the entire court is agape at being played for fools.]]
* ''WesternAnimation/JusticeLeagueAction'': In "Unleashed", [[RubberMan Plastic Man's]] jaw literally hits the floor when Dex-Starr (who had been posing as an ordinary housecat) reveals himself as a Red Lantern.
* ''WesternAnimation/{{Kaeloo}}'': Kaeloo usually does this when she is surprised or shocked (for example, after seeing Stumpy eat at a really fast speed and then dump all his food packaging on the ground).
* Kick does this in an episode of ''WesternAnimation/KickButtowski'' when he finds out Wade's been promoted and is never coming back to his favorite shop.
* Ron does this in the ''WesternAnimation/KimPossible'' episode "Emotion Sickness" on seeing Kim wearing a [[LittleBlackDress sexy black dress]]. Kim's dad even closes his jaw for him.
* A large number of ''WesternAnimation/LooneyTunes'' shorts feature these.
* In one episode of ''WesternAnimation/MightyMouse: The New Adventures'', one character's jaw drops all the way down from a helicopter.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** Both Twilight Sparkle and Spike have this reaction in the first episode after Rainbow Dash demonstrates her ability to clear the clouds out of the sky in "[[PunctuatedForEmphasis Ten. Seconds. Flat.]]"
** Twilight Sparkle, Applejack, and Pinkie Pie go for the jaw drop when Rainbow Dash does the Sonic Rainboom in the episode of the same name. Fluttershy, amusingly enough, goes for a different kind of reaction, made funnier by her [[FlatJoy earlier attempts at cheering on Rainbow Dash]].
** Princess Celestia, of all ponies, gets in on this in the first episode of the second season, after [[spoiler:finding out Discord has already stolen the Elements of Harmony.]] Cue a similar reaction from the Mane Six... except [[{{Cloudcuckoolander}} Pinkie Pie]] of course.
** Twilight after seeing the normally reserved Fluttershy seemingly take down a bear by kicking its back and snapping its neck; likely making viewers gave the same reaction as well.
** All of the school fillies, Apple Bloom especially, in "Family Appreciation Day" after Granny Smith finishes her story which also resulted in TheReveal she was responsible for the founding of Ponyville.
** Pinkie Pie, after seeing ExtremeDoorMat Fluttershy stand up for herself in "Putting Your Hoof Down". Rarity does the jaw-closing honors.
** Diamond Tiara does one after getting a scathing TheReasonYouSuckSpeech from her former best friend Silver Spoon, who sarcastically closes it with a hoof before turning her back on Diamond Tiara.
** Twilight in "The One Where Pinkie Pie Knows" when she realizes Shining Armor and Cadance are going to have a baby meaning she's a soon-to-be aunt.
* On ''WesternAnimation/PBAndJOtter'', Flick's jaw drops in "Thanks for the Giggle Melon" after Peanut [[OOCIsSeriousBusiness voluntarily offers to do a Noodle Dance]] to help Jelly think of ideas to help her giggle melon plant grow and then starts dancing.
* ''WesternAnimation/PhineasAndFerb'':
** Candace does a really humorous jaw drop at the very end of "The Fast and the Phineas" when she sees the tricked-out car has been returned to the garage and lost all the modifications and squeaky clean from the car wash, to Linda's delight.
** Candace does it again at the end of "Does This Duckbill Make Me Look Fat?" when she sees the boys' teleportation device has been shrunken down by Doofenshmirtz's Shrink-inator which Linda thinks were earrings the boys made for her to replace the ones she lost. Linda then tells Candace to close her mouth to avoid catching flies.
** Candace has a third jaw drop at the end of "Perry the Actorpus" when she sees the giant billboard advertising Perry for Totally Tools outside the Flynn-Fletcher house has replaced Perry with Sergei the Snail.
* ''WesternAnimation/RazzberryJazzberryJam'': Ella’s jaw literally hits the floor in “A Royal Pain” after Princess Persephone suggests that she (Ella) can’t handle harmony.
* ''WesternAnimation/ReadyJetGo'':
** Sean does a major jaw drop in "Space Race" after Zucchini uses his new thrusters in the titular race.
** Carrot does one in "Back to Bortron 7" after Eggplant informs him and Celery that they'll be done with Earth after their presentation. For dramatic effect, the Exploding Shake that Carrot was holding explodes in his face.
* In the WesternAnimation/WileECoyoteAndTheRoadRunner short "WesternAnimation/FastAndFurryous", following the Road Runner's little burst of speed, the Coyote comes to a stunned stop and pulls this expression.
* ''WesternAnimation/SamuraiJack'': In "Jack VS. Aku", Aku does one after watching [[EpicFail an entire robot army destroy ITSELF, just by one of them tripping on a rock]]. Considering Jack [[WinsByDoingAbsolutelyNothing didn't even do anything to beat them]], it's a fitting reaction.
* ''WesternAnimation/TheSimpsons'':
** In TheMovie, Scratchy's jaw drops at the sight of a whole heap of rockets flying at him, which promptly fill his gaping mouth.
** A similar scenario occurs with Bart and [[{{Squick}} a rat]] during an episode wherein Skinner expels him.
** A reporter does this when Mr. Burns spits out a piece of a mutant fish that he contaminated.
** The episode "Marge and Homer turn a couple play" has Homer and Bart (as well, all the male audience) having this reaction when Tabitha (a showgirl), in the Springfield Stadium, strips down to lingerie and launches into one of her own songs with lascivious dancing.
* ''WesternAnimation/SpongeBobSquarePants'':
** In "Krusty Love", Mr. Krabs has a hilarious one after [=SpongeBob=] gives him a profane rant.
** In "Krabby Land", [=SpongeBob=] and the children have a humongous collective one following Mr. Krabs' cheap and talentless presentation of Krabby the Clown.
* ''WesternAnimation/StarWarsRebels'': [[StateSec Agent Kallus]] has done this a few times.
** "[[Recap/StarWarsRebelsSparkOfRebellion Spark of Rebellion]]": His reaction to seeing Kanan [[CoverBlowingSuperpower get out]] his [[LaserBlade lightsaber]] on Kessel, complete with StunnedSilence.
** "[[Recap/StarWarsRebelsS2E05WingsOfTheMaster Wings of the Master]]": When he sees the [[SuperPrototype B-Wing]] blow away the cruiser to his right with just a few shots from its WaveMotionGun.
--->'''Kallus:''' [[ThisCannotBe That's impossible!]]
** "[[Recap/StarWarsRebelsS2E15TheHonorableOnes The Honourable Ones]]": Kallus does it again when Zeb throws his bo-rifle up to the surface, followed by a look of silent indignation when Zeb throws the meteorite and transponder up as well.
** A variation on the trope in "[[Recap/StarWarsRebelsS2E04BrothersOfTheBrokenHorn Brothers of the Broken Horn]]". Chopper is [[OutfitDecoy holding a stormtrooper helmet]] for Ezra's target practise, but when Ezra says he doesn't want to be a Jedi any more, the droid drops the helmet to [[OOCIsSeriousBusiness convey his shock]].
* The ''WesternAnimation/{{Super Mario World|1991}}'' episode "[[GrandFinale Mama Luigi]]" had Bowser/King Koopa drop his jaw after seeing all the furniture in his room is gone thanks to [[BigEater Baby Yoshi]].
* The episode "Betrothed" of ''WesternAnimation/TeenTitans'' has a particularly extreme example given by Robin, where his jaw drops off the screen, loops back around, and drops onto his head.
* In an episode of ''WesternAnimation/TimonAndPumbaa'', the two are looking for treasure. During a fight, Timon places a dividing line and states that whatever one finds on their side of the line, they can keep for themselves. Pumbaa promptly unearths a gold nugget, to which a shocked Timon's jaw drops to the ground.
* ''WesternAnimation/TinyToonAdventures'' uses this fairly often. In one episode, Montana Max is so shocked that his jaw goes right through the floor and lands on the floor of the basement below him. When his mouth closes again, his body gets pulled down to where his jaw was sitting.
* Done a lot on WesternAnimation/TomAndJerry, for instance in the short ''[[WesternAnimation/QuietPlease1945 Quiet Please!]]'' when Tom reveals to Jerry that he's given Spike the bulldog "knock-out drops", foiling Jerry's plan to get Tom in trouble by waking the dog up. Also in "Mouse Cleaning", in when Tom does a wild double take as he sees a mess Jerry causes him to make.
* ''WesternAnimation/TotalDrama'': Katie and Sadie are the first of the Killer Bass to show the team a talent to possibly send out to the talent show that evening in "[[Recap/TotalDramaNotQuiteFamous Not Quite Famous]]". They dance together and it's so incoherent and outright bad that Courtney, Bridgette, and Tyler all let their jaws drop at the display.
* ''WesternAnimation/TransformersAnimated'' does this twice to Bulkhead. First time was in the premiere episode "Transform and Roll Out", where Prowl pushes Bulkhead's jaw up after Optimus pulls a few stunts they didn't know. The second time was in "Along Came a Spider"; Blackarachnia strokes Bulkhead's jaw while flirting, and it literally falls partially ''off''.
* ''WesternAnimation/{{Wakfu}}'':
** Sadlygrove at the sight of his master, [[spoiler:Goultard]], vanquishing Rubilax in one blow.
** [[https://static.tvtropes.org/pmwiki/pub/images/Wakfu_Facepalm_9735.jpg Amalia]], when Grovy gets himself into a duel by defying her brother Armand. Followed by Eva doing a double {{Facepalm}}.
** Ruel, when learning that [[spoiler:Sadlygrove had seen Evangelyne naked, and not in a dream]].
* ''WesternAnimation/WorkItOutWombats'': In "[[Recap/WorkItOutWombatsS1E30HarvestDayThankfulnessStew The Treeborhood Thankfulness Stew]]," Mr. E does this when Zeke gets picked to cook the stew, and does an even bigger one when Zeke picks Louisa to be his helper.
* Raimundo from ''WesternAnimation/XiaolinShowdown'' when he sees a group of green monkeys jumping through the air to attack him. His jaw literally hits the floor.
[[/folder]]

[[folder:Real Life]]
* In the team finals of the 2012 UsefulNotes/OlympicGames, American gymnast [=McKayla=] Maroney, the reigning world champion on the event, hit a vault so astronomically spectacular that it has simply been known forever after as "[=McKayla=]'s perfect vault". But the audiences weren't the only ones impressed -- one of the ''judges'' [[http://www.buzzfeed.com/jpmoore/us-gymnast-mckayla-maroney-landed-the-vault-of-her actually did this at what she had just seen]].
* When O.J Simpson was acquitted, Rob Kardashian looked up at him with his mouth wide open.
* This reflex has actually been proven to have a [[https://achievement.ku.edu/relaxation-tips calming effect on the mind]]. Since your jaw naturally clenches when stressed or angry, letting it drop can release dopamine, thus calming you down.
* During Music/JanisJoplin's legendary performance of "Ball And Chain" at the [[Film/MontereyPop Monterey Pop festival]], the camera catches [[Music/TheMamasAndThePapas Cass Elliot]] staring in slack-jawed amazement.
* During the last UsefulNotes/NationalBasketballAssociation game before the suspension of the 2019-20 season due to the {{UsefulNotes/COVID}} pandemic, Dallas Mavericks owner Mark Cuban was seen [[https://www.youtube.com/watch?v=brNx0qGjUWM&t=55 dropping his jaw]] in reaction to the breaking news of the season's suspension.
* In [[https://www.youtube.com/watch?v=Dps8HK_aqk8 this viral video from 2020]], a young girl sees a pair of humpback whales breaching near her family's fishing boat and her mouth hangs open for several seconds.
[[/folder]]
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