--> You can view the main page [[WesternAnimation/AdventureTime HERE!]]
---> Tropes A-C [[AdventureTime/TropesAToC HERE!]]
---> Tropes I-R [[AdventureTime/TropesIToR HERE!]]
---> Tropes S-Z [[AdventureTime/TropesSToZ HERE!]]
----
[[foldercontrol]]

[[folder:D]]
* DancePartyEnding: "Trouble in Lumpy Space", "All the Little People" and "Shh".
* DarkerAndEdgier: "City of Thieves" is this compared to the rest of season one. As is "What Have You Done?"
** "Ocean of Fear" is all about facing the physical embodiment of fear, which makes for a much darker episode. In addition, Pat [=McHale's=] quote at the end of the show [[SequelHook gives one pause]]. This is also one of the few times we get serious evidence of Ooo's post-apocalyptic feel.
** The second season, especially the finale.
--->'''Princess Bubblegum:''' If you fail... he'll kill ''everyone''.
** Season three seems to be heading this way as well... [[SerialEscalation and even MORE so]].
*** "No One Can Hear You" is perhaps the [[MindScrew worst one]] to date. A sadist deer, a brain-damaged Jake who went CloudCuckoolander verging on NightmareFuelStationAttendant and kept Finn prisoner, the Candy People's fate, and the fact that the deer was [[spoiler: hit by a brick and falls into a whirlpool]].
*** "Jake vs. Me-mow" features an assassin named [[ExactlyWhatItSaysOnTheTin Me-mow]], a [[KillerRabbit tiny cat]] who stabs someone to deliver a death threat to Wildberry Princess, and threatens to inject Jake with a deadly poison if he doesn't kill Wildberry Princess himself. [[spoiler:Jake just grows his liver and detoxifies himself.]]
*** The Ice King's origin in the episode "Holly Jolly Secrets Part II". It was probably the darkest back story in Adventure Time and on Cartoon Network - [[spoiler:He was once a human named Simon Petrikov, driven insane by his arcane crown.]]
*** The fruit witch scene in "Dad's Dungeon", which happens to feature [[spoiler:blood and bones. Specifically the blood and bones of anyone who eats one of the small apples, as those turn them into giant apples on the outside. Finn had a pretty good idea of what would happen if he ate the food, but [[DrivenToSuicide was going to anyway]] due to feeling like everyone he cared about turned against him. Jake saves him by swiping the apple and forcing one of the three witches to bite it, causing her to transform and the other two to [[IAmAHumanitarian eat her]]]].
** Marceline once inhabited a realm known as the Nightosphere, a type of {{Hell}} where demonic creatures petition Hunson Aberdeer for boons. Due to his tendency to wear a mystic amulet of chaotic evil, he usually grants them in grotesque ways.
--->'''Marceline whilst wearing amulet:''' You sure dude? Don't you want 'abs'?
--->'''Demon''': Yeah, gimme abs!
--->'''Marceline''': [[spoiler:*transforms the demon's head into abs*]]
--->From the same episode, a [[OurMonstersAreWeird Half Monster Demon]] helps Finn and Jake:
--->'''Half Monster Demon''': Get in my flippin' belly and I will transport you. My insides are habitable. You will not be digested.
** From "Goliad":
--->'''Princess Bubblegum:''' I'm not gonna live forever, Finn. '''I would if I could'''. But modern science just isn't there yet.
*** Also, Goliad's monologue about the bee.
--->'''Goliad''': Bee doesn't care about flower. Bee will hurt flower to get what it wants. Bee is stronger than flower. *crushes bee under its palm*
** In "Princess Cookie", Finn and Jake have to take care of a hostage situation, orchestrated by a cookie named Baby Snaps. [[spoiler:Baby Snaps escapes with Jake only to have this sequence when the pursuit gets close:]] (He gets better.)
--->'''Baby Snaps:''' [[spoiler:I'm sorry, Jake. It's over. *zoom to close, falls backward over cliff, smashes into pieces*]]
** The series as a whole has become much darker. While theres still loony silliness all around, there are way more melancholic undertones to the show than before. Compare a recent episode to one of the earlier ones which featured candy parties and thawed out businessman.
** "Lady & Peebles", in which [[spoiler:Lady Rainicorn is revealed to be pregnant in the last seconds]] and [[spoiler:set in the organic lair of a conscious heart often tombed in the Ice King]], mostly.
*** In that same episode, [[spoiler:Princess Bubblegum challenges Ricardio to hand-to-hand combat, before expertly dismantling him.]]
--->[[spoiler:'''Princess Bubblegum:''' You think we're intellectual equals?! It only took me seconds to get you off your guard! And this ''body'' you designed is self-congratulatory garbage! See, I know a thing or two about building a body out of biomass, *Detaching leg* and you '''don't'''... leave your heart exposed!]]
--->[[spoiler:'''Ricardio:''' I just wanted to impress you!]]
--->[[spoiler:'''Princess Bubblegum:''' You '''''didn't'''''. *Pounds Ricardio's face with his own leg* Get out of my sight.]]
** "The Lich": It's bad enough to see the Lich wish for the extinction of life, yet when Finn wishes for the Lich not to exist, it has unforeseen consequences. [[spoiler:Mushroom War's radiation]] never happens. Add in the fact that the universe's 'Jake' ends up turning into the Lich when Finn finds the crown of the Ice King, and you've got one seriously messed up episode. It gets better, though.
** In season 6's "Breezy," Finn explores the darkness of lust to search for a warm feeling he's lost. It's exactly what it sounds like.
* DarkAndTroubledPast: In the episode "The Apple Thief", Jake mentions that he stole purses and hawked stolen bicycles; which could explain his actions in "City of Thieves".
** [[spoiler: Ice King]].
** Baby Snaps was [[spoiler: an orphan who had his dreams of being a princess created and ruined by Princess Bubblegum reading to the orphanage, then laughing at his idea that he could become a princess to help people like her]].
** Most of Marceline's thousand-years-long existence can be described as this. Her tragic backstory even ties in with [[spoiler: Ice King's.]]
* DarkestHour: Finn goes through this for a short time in "Freak City"... ''Complete with awesome music!''
* ADayInTheLimelight: The ''[[{{Snowlems}} Snow Golem]]' in "Thank You", of all people!
** BMO gets one in "B-Mo Noire".
** Princess Bubblegum and Lady Rainicorn show how much of an AdventureDuo they can be in "Lady & Peebles".
** Gunter gets one in "Reign of the Gunthers", since they're the main antagonist.
** The Ice King, Tree Trunks, Lemongrab, NEPTR and Shelby (the worm that lives in Jake's viola) [[note]] You can... just call me Shelby... [[/note]] get one in "Mystery Dungeon".
* DeadHandShot: The title card for [[http://www.cartoonnetworkshop.com/product/adventure+time+the+jiggler+title+card+print+from+season+one+episode+3b+atcnprt0106.do "The Jiggler"]]. Of course, [[CoversAlwaysLie it has nothing to do with the episode.]]
* TheDeadliestMushroom: A lot of references are made to the "Great Mushroom War." [[WordOfGod Pen Ward has confirmed the series takes place post-nuclear-apocalypse.]]
* DeadlyPrank: Played with in "Heat Signature"; Marceline's ghost friends actually ''wanted'' Finn and Jake to die. They and Marceline had tricked Finn and Jake into thinking they were vampires, whose powers include {{flight}}. The extended prank culminated in the ghosts teaching them how to fly by knocking them off a tower (Marceline, drawing the line at actual harm, catches them). The ghosts did it because [[ItAmusedMe it would have been funny]].
* DeathByGluttony: [[spoiler: Clarence]] in "Ghost Princess."
* DeclarationOfProtection:
** Finn, towards Princess Bubblegum. And he has a BodyguardCrush on her, too.
** [[spoiler: Simon Petrikov towards young Marceline during the Mushroom War.]]
** In "The Red Throne," [[spoiler:Cinnamon Bun towards Flame Princess.]]
* {{Defictionalization}}: Real-life versions of Finn's awesome hat and Card Wars exist and are available for purchase.
* DenserAndWackier: "City of Thieves".
* DepartmentOfRedundancyDepartment: "If you fail, Marceline will be trapped in eternal sleep... FOREVER!"
** From "Tree Trunks":
--->'''Jake:''' "I want to carve my face on the moon... so the moon will look like my face!"
** From "Hitman":
--->'''Ice King:''' A leg cramp! In my leg!
* DependingOnTheArtist: Each episode (especially in the second season onward) has slightly different character appearances due to the art style of the storyboarders of that episode.
* DependingOnTheWriter: An in-universe example would be the Fionna and Cake fan-fiction. Each time a Fionna and Cake story is presented, [[spoiler: including the comic,]] it's told by a different person, and the characters reflect that person's personality.
* DerangedAnimation: During the more acid-driven moments of the show, things get crazy.
* DespairEventHorizon: Finn goes through this in "Incendium", to the point where he ''[[OOCIsSeriousBusiness actually cries]]''.
* DetectEvil: The gumball guardians of the CandyLand have this, but neither the Ice King nor Marceline trigger it.
* {{Determinator}}: The snow golem from "Thank You"; it [[spoiler: goes on a trek through the Fire Kingdom to get the fire wolf pup back to its family.]]
** Finn in "Another Way". Whenever he hits a road-block, he's convinced that he can still continue using his own methods - it's the plot.
* DeusExMachina: At the end of the episode "Dungeon", Finn and Jake are unexpectedly saved from Eye Demons by Princess Bubblegum.
** At the end of "Jake vs. Me-Mow", a bird tries to grab one of the sausages from Jake's ears, knocking Me-Mow out of his nose.
* DevelopmentGag: [[spoiler:Ice King's fiancé back when he was a human]] was named "Betty", which was PB's first name in the original network pitch.
* DevilInPlainSight: Ricardio.
* DidntThinkThisThrough: From "Her Parents"
-->'''Jake:''' Nah... That could never happen.\\
'''Finn:''' You didn't think this through enough. IT COULD HAPPEN!
* DidTheyOrDidntThey: In "Breezy" Finn pecks Lumpy Space Princess on the lips, which makes her tell him that she doesn't want to be stuck in the "kiddie pool"; she wants to go to the "deep end" instead. There is a FadeToBlack, and the next scene shows Finn and LSP lying down, separated.
* DidYouJustPunchOutCthulhu: In a misguided if courageous example, Jake almost [[spoiler: kills Marceline]], someone who effortlessly defeated Finn and him in an early episode, all while dressed as a strawberry and fighting his monumental [[spoiler: fear of vampires]] to save his friend.
** Finn gets a turn when he defeats the Lord of Evil, [[spoiler: Marceline's dad]] with two swords, a smiley face, bug milk, and some magic words, all while screaming to the top of his lungs.
** When Marceline's dad tried to suck out Gunther's soul, the little guy slapped him in the face.
** The legendary hero Billy casting down the Lich. Bonus points for it being said that he ''pummeled him into a tree'' where he [[SealedEvilInACan imprisoned him in amber]].
*** [[spoiler:Finn and Ice King manage to defeat the Lich again when he gets free. Not as utterly {{Badass}} as pummeling the guy into a tree, but still.]]
*** [[spoiler:You kidding? Finn tears out the Lich's skull [[ImprobableWeaponUser with a sweater!]]]]
** In "Betty", [[spoiler:the titular character walks up to Bellanoche, who has so far been winning effortlessly against an army of powerful wizards]], and knocks her out cold with a single punch. This was most likely due to the fact that [[spoiler:Bellanoche's power allows her to absorb magical energy]], which means [[spoiler:a {{Muggle}} like Betty would be unaffected.]]
* DigitalPiracyIsEvil: "Videomakers" is about Finn and Jake deciding to make their own movies for movie night, since (pre-apocalyptic) federal law prohibits unauthorized exhibitions of movies.
* DisappearedDad: Finn's biological dad. [[spoiler: That is until the Season 5 finale where Billy tells Finn that his dad can be found at the Citadel.]]
* DisasterDominoes: [[spoiler:Surprisingly averted in "Apple Wedding, despite all the pieces being there like Cinnamon Bun shaking up the bottle of apple cider and Finn trying to prevent LSP from crashing the wedding. The only thing that amounts to anything is Princess Bubblegum hijacking the King of Ooo's balloon.]]
* DisproportionateRetribution: In "The Witch's Garden":
-->'''Finn:''' What did you ''do'' to him?!\\
'''Witch:''' I stripped him of his magical powers.\\
'''Finn:''' [[LampshadeHanging For stealing one of your]] '''[[LampshadeHanging billions]]''' [[LampshadeHanging of donuts?!]]
** Flame Princess turns a few Fire Kingdom dittelantes of court into baby flame elementals for whispering.
** In the video game, [[spoiler:Lumpy Space Princess]] tries to [[spoiler:destroy the world]]... because [[spoiler:Finn threw away the clay ashtray she gave him for his birthday]].
* DissonantSerenity: Finn cheerfully decides to [[spoiler:repress his memory of the ''real'' ghost]] in "The Creeps".
* DistaffCounterpart: "Adventure Time with Fionna and Cake" introduces a world with a distaff counterpart for every character.
* DistantDuet: Tree Trunks and Mr. Pig in "Dream of Love".
* DistressedDamsel: Finn and Jake's adventures frequently revolve around saving one or protecting one.
* DistressedDude: Finn in three episodes:
** He got tied up and forced to run in a wheel in one episode. He was rescued by Jake.
** And then--[[spoiler: he got kidnapped by crystal guardians to be made into a crystal]]. He was, again, rescued by Jake.
** "Dungeon" has Finn and Jake both doomed until Princess Bubblegum suddenly flies in to save them... on a [[MundaneMadeAwesome giant laser-shooting swan.]]
** In "Lady & Peebles" Princess Bubblegum & Lady Rainicorn saved Finn, Jake, & Ice King from Ricardio.
* DoesNotLikeShoes: Susan Strong.
** Also Princess Bubblegum is often barefoot, however her feet are often covered up by her long dress. Though with recent episodes she is shown wearing shoes more often. In Glitch she is back to being barefooted.
** Flame Princess is always barefoot. She gained shoes with her new outfit but is back to being barefoot with her more recent outfit.
** Ice King usually.
* DoesThisRemindYouOfAnything:
-->'''Goblin criminal:''' [[DoubleEntendre Gimme those]] [[{{Pun}} hot buns]], [[DoubleEntendre lady]]!
** Tree Trunks and Mr. Pig are discovered ''in a literal closet'' when the residents of Ooo find their love "icky" and they are explicitly told they must "hide" it.
** Also, the final form of Marceline's dad. Paging Dr. Freud...
** Bubble from "BMO Lost" is popped and [[ComingOutStory "finally freed" and "doesn't have to hide anymore" right after he confesses his feelings towards BMO.]]
** "Frost & Fire" '''''FULL STOP.''''' The whole episode is pretty much about Finn getting off on Flame Princess beating up the Ice King.
* DoingItForTheArt: In-universe in "What Was Missing".
-->'''Finn:''' Jake! You're back!\\
'''Jake:''' Shut yo face. I came back for the ''music''.
* DoorStopper: The UNABRIDGED version of Rainicorn history in "Paper Pete".
* DoppelgangerAttack: Jake does this in "The Chamber of Frozen Blades".
* DoubleEntendre:
** From "City of Thieves":
---> '''Finn:''' You made me steal. And you took my purity. [[DefiledForever You ruined me!]]\\
'''Penny:''' I'm sorry, Finn!
** From "Dungeon":
--->'''Finn:''' Don't flaunt it if you're not going to give it up!
** From "It Came From the Nightosphere":
---> '''Marceline:''' You're like an ant to him.\\
'''Finn:''' Well, this ant's about to get in his pants!\\
'''Marceline:''' What. *amused look*''
** Same episode:
---> '''Finn:''' No one flicks me in the butt without my consent!!
** From "Gut Grinder":
--->'''Finn:''' Oh, Jake! You never turn into a monster when I ask you! It's always "Not now, Finn, I have a headache!"
** From "The Duke":
--->'''Finn:''' How can the dude be evil if he pets puppies, kisses babies, and '''[[ItMakesSenseInContext lies with his wife]]'''?
** [[GettingCrapPastTheRadar Lemongrab.]] [[GroinAttack Think about it,]] adventurers...
*** Even better, his name in the storyboards was originally Lemon''snatch''. If you can't figure it out, [[spoiler: sourpuss.]]
* DoubleTake:
-->'''Bufo:''' Now I release the elder Jeremy from his pledge. Razzamafoo!
-->'''Elder Jeremy:''' It's about time. *crumbles into dust*
-->'''Bufo:''' And you take his place for the rest of your natural life.
-->'''Finn:''' Awesome!!! ...''Wait'' '''WHAT?'''
* DownerEnding: The episode "I Remember You" ends with [[spoiler:Marceline singing the song written by Simon with The Ice King, while sobbing after trying the whole second half of the episode to make the Ice King remember who he was. He doesn't, she just cries as they both sing, Ice King completely oblivious to the situation, and it cuts to a HappyFlashback of Marceline when she was a crying little girl alone just after the apocalypse. Simon finds her, wipes her tears, and gives her the teddy bear she loses in Memory of a Memory.]]
** [[spoiler:"Frost and Fire" in which Flame Princess breaks up with Finn.]]
** In "Puhoy" Finn finds himself in a dream-like world made of pillows. He soon realizes he can't leave and get back to his world and the episodes shows him marry, have kids, and become an old man until [[spoiler:he eventually dies with his entire pillow family at his bedside. He suddenly emerges from the pillow world at the same place, time and age he was at when he left. Finn mentions to Jake that he had a crazy dream, but is distracted, and when asked again later he has completely forgotten the experience.]]
** [[spoiler: "Escape from the Citadel" Finn and Jake hitch a ride on the frozen body of the Lich and arrive at the Citadel. They end up finding Finn's father, named Martin, and the Lich manages to escape and free the other criminals, including Finn's dad. However, Finn's father has no memories of Finn, or why he even abandoned him in the first place. He ends up completely using Finn and tries to leave him in the Citadel and escape with the other criminals, while Finn and Jake try to fend off the Lich. Finn ends up coming close to being killed by the Lich, but manages to use Guardian Blood on the Lich(which restores Flesh and heals wounds) which causes it to be reborn as a giant baby. Finn then tries to stop his father from leaving by trying to hold back the craft they try to sail away through a portal on, but is close to reaching his limit and you can really see the strain on his face as he tries so very hard to keep his father with him. Eventually, the Grass Sword completely engulfs his arm to try and help him hold it back, but Finn finally can't hold on and lets go, ripping off the Grass Sword from his body, which severs his arm in the process. As he falls down, a drop of Guardian Blood lands on his severed arm, which only grows a flower in its stump because there were no bones or anything left of his arm to heal, implying that he may have lost it for good. Jake(and Shelby) comfort Finn and return back to Ooo, and they leave the Baby Lich with Tree Trunks and Mr. Pig.]]
* DramaBomb: Played straight and called out by Lumpy Space Princess in "It Came from the Nightosphere" when Marceline's dad hears Marceline's song.
** The BIGGEST drama bomb in Adventure Time history came with the Christmas special "Holly Jolly Secrets" when Finn and Jake view the Ice King's biggest secret, on video, when he himself is right there with them.
--->'''Jake:''' DRAMABOOOMB!
** Season three in general has been one great big drama bomb.
*** Season four didn't skimp either.
** The first three episodes from the Flame Princess arc, but especially "Burning Low". The fourth, "Ignition Point", was a lighthearted fetch quest/dungeon crawl.
** The ending of "Lady & Peebles", without question, is one of the biggest the show has ever had.
--->'''Lady:''' [[spoiler:''(In English)'' I'm pregnant!]]
** "I Remember You" has Marceline's discussion of the Ice King's 'song inspiration'. [[spoiler: The 'inspiration'? In the city ruins immediately after the Mushroom War, Simon Petrikov (before he lost his mind and became the Ice King) found Marceline as a young girl, alone and crying. He became sort of a father figure to her.]]
* DramaticWind: Happens whenever Sir Slicer shows up.
* {{Dramedy}}: Would you believe a cartoon like this has its dramatic moments? One example is [[http://www.youtube.com/watch?v=8XfpaRgjbqw Marceline's song]] in "It came from the Nightosphere". Starts out with her talking about her dad stealing her fries, then turns into heart-breaking ballad about how he neglected her.
** The show gets even ''more'' dramatic in "What Was Missing" when Marceline sings a deep song saying that she's annoyed that Princess Bubblegum treats her in an estranged manner, and then implies that she (Marceline) wants to make up with her in some way.
** Jake gets some of these moments in "No One Can Hear You," and there's also him nearly making ''[[{{Badass}} Finn]]'' cry in "New Frontier."
** The Ice King has now been made into an extremely tragic figure, but even before then, he had sad scenes.
* DreadfulMusician: Finn when playing the viola, according to Jake.
** It has been established that the Ice King is ''NOT'' a good singer.
** Played with in regards to Lemonhope. He playes the harp very well, which Lemongrab hates. He tries to play the flute, but is awful at it, yet [[BadIsGoodAndGoodIsBad Lemongrab loves it.]]
* DrivenToSuicide: Happens to Finn after believing that his father didn't think much of him in "Dad's Dungeon". Fortunately Jake manages to snap him out of it.
** Also happens to Baby-Snaps in "Princess Cookie."
* DroppedABridgeOnHim: [[spoiler:Root Beer Guy]] in ''Something Big''. Actually, the manner of his death is perfectly respectable, but still very anticlimactic since it happens off-screen before the episode even starts.
* DualWielding: Finn uses two swords in "Slow Love" and "It Came from the Nightosphere".
* DungeonCrawling: Finn, and eventually Jake, do this in "[[ExactlyWhatItSaysOnTheTin Dungeon]]".
* DungeonPunk: The world is full of technology, such as Lady Rainicorn's universal translator device and holographic computers, mixed with magical items like wands and freezing potions.
* TheDulcineaEffect: Played with in both "Incedium" and "Hot to the Touch". At the end of "Incendium", Finn is fighting off a demon of fire which extinguishes itself by Princess Bubblegum's water rockets. Only when the demon is extinguished is it revealed to be Flame Princess. Though she slaps him in the face after he says he likes her, he remains adamant on stopping her destruction while not hurting her in "Hot to the Touch", which begins directly after the end of "Incendium".
* DyingAsYourself: Simon considers letting himself die in "Betty" instead of becoming the Ice King again.
* DyingDeclarationOfLove: Amazingly, in "Who Would Win," Jake's game of Kompy's Kastle does this when Finn breaks it.
** Inverted in "Bad Little Boy", where Marshall Lee tries to get Fionna to admit she loves him while he's (fake) dying.
[[/folder]]

[[folder:E]]
* EarlyInstallmentWeirdness: In the first few seasons the show seems to flirt with NegativeContinuity, with Finn and Jake not retaining their wizard magic or ice ninja abilities after the episodes that introduced them. Later on, well, check out the [[ContinuityNod/AdventureTime Continuity Nod page]] for the full list.
** They lost the wizard magic when their robes were destroyed but it is weird that they stopped using their ninja powers. Finn's fat belly didn't last either.
* EEqualsMCHammer: Finn's first math problem in "Slumber Party Panic".
* EarnYourHappyEnding: "Ghost Princess" had a very sweet one, which required death and post-mortem trauma from a couple characters, but was rewarded with two lovers [[AscendToAHigherPlaneOfExistence ascending to the next plane together.]]
** "Incendium" had a more subtle example. Jake tried to get Finn to move past the heartache [[HurtingHero he'd been suffering all season]]. The beginning of the episode had Finn hit an [[DespairEventHorizon all time low]], [[HeroicBSOD losing the will to do anything]] but curl in a ball and stare at a picture of Princess Bubblegum. Jake's lengthy IndyPloy to snap Finn out of it, requiring a harrowing trip to the Fire Kingdom and a dangerous chase back, finally got Finn off his butt. Jake's efforts [[spoiler: were rewarded with the words, [[SecondLove "Dude. I think I have a crush!"]]]]
* EasyAmnesia: In "Death in Bloom", Jake gets [[IdentityAmnesia amnesia]] from drinking the water in the River of Forgetfulness. Finn casually inflicts this on himself in "The Creeps", apparently something he regularly does when he experiences something disturbing.
** Happens again in "Return To the Nightosphere" where Finn and Jake find themselves in a prison somewhere in a nightmarish realm with no idea how they got there and a banana near Finn. The sequel, "Daddy's Little Monster", later reveals through Jake's cell phone that they were hanging out with Marceline in the Nightosphere, but an evil amulet given to her by her father who wanted her to continue family business caused her to turn into a chaotic evil {{Eldritch Abomination}} knocking out the duo and giving them amnesia.
* EatTheCamera: The end of the first part of "Holly Jolly Secrets" where Jake is screaming while the camera zooms into his mouth.
* TheEeyore: The goblins.
* EldritchAbomination: The Wall of Flesh from "Tree Trunks".
** [[spoiler:Wearing the mystic amulet. Anyone who happens to wear it becomes chaotic evil and turns into a demonic ruler of the Nightosphere in form and concept.]]
** The Lich [[spoiler: and Princess Bubblegum after he possesses her and regains his true power. It's so powerful it requires an EnemyMine with Ice King to defeat it.]]
** The [[spoiler: "Lub-glubs" from the episode "Beautopia" are most definitely this, only apparently inhabiting pool toys.]]
** In "Dad's Dungeon", [[spoiler:the final monster that Finn and Jake fight.]]
** All sorts of creatures in the Spirit World from "Beyond This Earthly Realm," especially the head spitting spirit. Even the Ice King is freaked out by it.
** It's increasingly strongly implied that ''Peppermint Butler'' of all people is one. One of the Gumball Guardians even refers to him as "The Dark One".
* EldritchLocation: The crystal world and the Nightosphere.
* ElementalRockPaperScissors: Lampshaded in "Heat Signature," when Finn and Jake are being attacked by some ghostly friends of Marceline after a prank gone wrong.
-->'''Marceline:''' Finn, Jake... I'm so sorry I got you into this. I should've never pranked you so perfectly.\\
'''Finn:''' It's okay. You're here now to beat up those ghosts... and save us!\\
'''Marceline:''' Oh no, vampires can't beat ghosts. It's like a rock-paper-scissors thing.
* EmbarrassingCoverUp:
-->'''Jake:''' You shouldn't marry Finn. He pees his pants. Constantly. All the time.
* {{Emoticon}}: Beemo's screen shows a "'''D:'''" when his controller is stolen in "What Was Missing".
* EmpathicWeapon: Billy's [[PowerFist gauntlet]].
** Finn's grass sword in "Blade of Grass", though until he accepts its [[ClingyMacGuffin clinginess]] it leans closer toward an EvilWeapon.
* TheEndOrIsIt: In the last two seconds of [[spoiler: "Jake vs. Me-Mow", Me-Mow is seen flying on a bluebird after it was believed she had fallen off a cliff]].
* EnemyMine: Finn and Jake teamed up with the Ice King to [[spoiler: stop the Lich-possessed Princess Bubblegum after she went OneWingedAngel.]]
** He does this again in a short heralding in the third season, he seems to enjoy it, even though the duo bluntly told him to commit a HeroicSacrifice in the process.
* EpisodeTitleCard
* EskimosArentReal: Flambo, a catlike creature made out of fire, insists that ninjas "ain't real for nothing no-how."
* EternalEnglish: The businessmen's weird grammar in "Business Time" can be taken as an aversion of this trope.
-->''"We love work for you!"''
* EvenEvilHasStandards: The Ice King will kidnap unwilling princesses left and right and try to make one of them his bride, but he loses interest in Princess Bubblegum when [[spoiler: she's aged down to 13]]. He's creepy, but he's not THAT creepy.
** [[spoiler: And yet, he writes fanfiction about the genderbent version of Finn falling in love with him...]]
* EverybodyLaughsEnding: The ending to "When Wedding Bells Thaw", complete with an IrisOut.
** Also the ending to "Apple Thief".
* EveryoneCallsHimBarkeep: Most of the royalty in the show, excluding Marceline. Princess Bubblegum also might be an exception since Bubblegum is really her surname.
* EverythingsBetterWithPrincesses: There are ''a lot'' of princesses in the land of Ooo. Princess Bubblegum, Hotdog Princess, Lumpy Space Princess, Muscle Princess, Slime Princess, and so on. Then there's [[http://www.flickr.com/photos/84568447@N00/5114340895/ Princess Princess Princess.]] Pen's official stance on the abundance of princesses is "WHY NOT. AMIRITE? LADIES? GUYS? RIGHT? AMIRITE?"
** Except for Dr. Princess. Princess is just her surname.
* EverythingsBetterWithSparkles: My ''god'', that glorious HAIR!
* EverythingsBetterWithPenguins: The Ice King's [[AdorableEvilMinions penguins]] provide a nice touch of funny and cute.
-->'''Finn:''' Haha! Penguins!
* EverythingTryingToKillYou: The Evil Forest.
** The Dungeon
* EvilerThanThou: Marceline's Dad to the Ice King, and earlier, Gunter to Marceline's Dad.
* EvilOverlooker: The title card for [[http://www.flickr.com/photos/84568447@N00/5084836846/in/set-72157625123405692/ "The Eyes"]] gives this vibe.
* EvilVsEvil: The final scene of the Farmverse: [[spoiler: Ice King!Finn vs. Lich!Jake]]
* ExactWords: In "Mystery Dungeon", the Ice King throws the book containing his Fionna and Cake fanfiction into a magical fire since it is said that anything thrown into the fire can be brought to life. However, only the ''book itself'' is brought to life, much to Ice King's dismay.
* ExactlyWhatItSaysOnTheTin: No, not the title itself (Thought it ''would'' kind of fit). In "Mystery Train" Jake grabs a train schedule. It has ''"you got a schedule"'' written on it.
* ExplainingYourPowerToTheEnemy: See AttackItsWeakPoint, above.
** In "Jake Vs. Me-Mow", Me-Mow boasts that she has injected Jake with enough poison to kill a dog fifty times his size. [[spoiler:Which prompts Jake to use his powers to grow [[ViewersAreGeniuses his liver]] fifty-one times its normal size, curing the poison.]]
* {{Exposition}}: From "Videomakers":
-->'''Finn:''' ...And a thimble of milk for Shelby, the worm who lives in Jake's viola.\\
'''Shelby:''' ...You can just call me Shelby.
* ExpositoryThemeTune: Quoted above.
* ExpressiveEars: The ears on Fionna's (and to a lesser extent Finn's) hat.
* {{Expy}}: According to WordOfGod, Fionna is partially based on Sailor Moon.
** Highlighted with the dress Fionna wears to the ball, it's almost Princess Serenity's.
** Finn's design partly comes from a character named Bueno, another one of Pen Ward's creations.
** BMO seems to be a retro-fied [[Webcomic/QuestionableContent AnthroPC.]]
** The Lich is an expy for the main villain of the Black Cauldron.
* EyeBeams: [[spoiler:Tree Trunks.]]
* EyeScream: Peppermint Butler suffers this when he gets Princess Bubblegum's spicy potion in his eye in "Too Young".
* {{Eyedscreen}}: "Ricardio the Heart Guy", This trick shows up when Finn says that Ricardio is "up to something."
[[/folder]]

[[folder:F]]
* FaceDoodling: Finn and Jake do this to the Ice King when they steal the gems from his crown while he is asleep in "The Lich".
* FakingTheDead: Finn in "What Have You Done?" to make Ice King wail and save the citizens of the Candy Kingdom.
** Finn, Jake, Beemo, LSP, and Cinnamon Bun do this in "Conquest of Cuteness" to make the Cute soldiers feel better about themselves. LSP exaggerates hers by pretending to [[LoveAtFirstSight fall in love]], then fall ''out'' of love with one of the Cuties, and consequently have a fake [[HollywoodHeartAttack heart attack]]... [[ForTheFunnyz for laughs]].
** Marshall Lee pretends to die in "Bad Little Boy" for the purposes of playing with Fionna's head and trying to get her to admit she loves him.
* {{Familiar}} Maja's crabbit (crow/rabbit), but he really wants to be a dancer.
* FamilyUnfriendlyAesop:In universe, the lesson the Magic Man is apparently trying to teach anyone who encounters him is "be as big a JerkAss as you possibly can to people you come across"
-->[[spoiler:'''Magic Man''' (after causing Jake's death in "Sons of Mars"): "I win again, as always!"]]
* FamilyUnfriendlyDeath: In "No One Can Hear You", a deer's head and neck are '''crushed''' by two cinderblocks, and then his body gets ''flushed down a giant sewer pipe!''
** [[spoiler:Ghost Princess died after Clarence ''stabbed'' her. Clarence died after stuffing himself with so much soft cheese that he straight-up ''exploded''.]]
** The third season is fond of this trope apparently. In "Dad's Dungeon", [[spoiler:a fruit witch is eaten until nothing but her ''blood-covered bones'' is left. And that was almost Finn.]]
** [[spoiler:Shoko's death]]
* FanDisservice: Oh, Tree Trunks. You card.
-->''"I'm the sexiest adventurer in the world!"''
** They also seem to try to slip in as many upskirt shots of the Ice King as possible. You better get used to the sight of that shriveled blue body and dirty-toilet-paper-looking underwear.
* {{Fanfiction}}: In universe example. [[spoiler:Adventure Time with Fionna and Cake was a fanfic ''written by the Ice King'' and continued by Marceline and Lumpy Space Princess.]]
* FantasticRacism: The episode "Trouble In Lumpy Space" thoroughly establishes that there's a small bit of friction between lumpy and smooth.
** There is apparently also some tension between magic dogs and rainbow unicorns, especially in the wake of the dog/unicorn wars.
** Fish people!
* FantasyKitchenSink: Ninjas, cyborg barbarians, ''PostApocalyptic'' setting, knights, dragons, talking animals, wizards, etc.
* FantasticNuke: The bombs dropped in the Mushroom war released SicklyGreenGlow and skulls and howling phantoms. [[spoiler: They can also turn the first person they hit into the Lich...]]
* FateWorseThanDeath: You've gotta understand. That couch is ''really'' uncomfortable!
-->'''Finn:''' Can we just get back to the brain-eating, or whatever?
** [[spoiler:Dying in the Fight King's arena results in you being trapped there as his ghost gladiators forever. Finn managed to kill the Fight King, setting the ghosts free.]]
** From "To Cut a Woman's Hair":
---> "Well, ''[[SarcasmMode maybe]]'' you should help me get some princess hair, so ''maybe'' your friend won't be sucked into my '''''[[{{Squick}} bottomless bottom]]'''''!"
** The fate of [[spoiler: Princess Bubblegum and the Candy People]] in the episode "No One Can Hear You".
** In "Betty", [[spoiler: Simon confides that he'd prefer to die than become the Ice King again]], but does so anyway, on the off-chance that he can be saved...
* FearfulSymmetry: The Crystal Guardian of the Crystal Gem Apple. Unlike some examples through, it's not an actual clone, but an imitator made out of hard, sharp crystal. When you punch its punch, you're the one getting hurt, not it.
* FeeFiFauxPas: Finn makes one when he yells at the top of his lungs at a candy party in "Ricardio the Heart Guy".
-->'''Finn:''' I'M NOT ''JEALOUS''. '''I'M ''WEIRD!!!'''''\\
'''Jake:''' ''(to himself)'' WOOF, this is goin' ''bad''.
* FelonyMisdemeanor: ''Daddy, why did you eat my fries?'' While this may have been kind of a last straw thing, it's still silly to get so upset over it. On the other hand, it may not have been a last straw thing, but more of a personal hurtful situation she remembers. Sure, the Lord of Evil could go around stealing souls and Marceline couldn't care less, but doing something like that is just personal to her. Plus, it never stated when she wrote the song. It could have been a while before he was banished to the Nightosphere. [[spoiler:Then a later episode reveals that the fries were stolen when they were desperate scavengers in a post-apocalyptic wasteland, so maybe it was [[SubvertedTrope pretty much a felony after all]].]]
** [[DoesThisRemindYouOfAnything Nonconsensual]] hugging.
* FemaleFelineMaleMutt: Jake is a male dog and his DistaffCounterpart, Cake, is a female cat.
* FeudEpisode: "Videomakers". Finn and Jake argue over whether to make an ActionAdventure or a RomanticComedy for their movie club.
* FeudalFuture
* FightingYourFriend: The modus operandi of the Fight King is to lure fighters to his colosseum in pairs and eventually pit them against each other. The ghosts of previous challengers moan for the forgiveness of their friends as they fight. [[spoiler:Finn uses the Fight King's love of this to trick him into giving him his SoulJar, which Finn promptly smashes.]]
* FilmNoir: "BMO Noir".
* TheFinalTemptation: The Ice King pulls this in "What is Life?" to try to get NEPTR to become his son, Ice King takes the robot to his [[HappyPlace Imagination Zone]] and offers him a life of capturing (and "mating with") princesses.
** "Puhoy." A Tear-Jerker as well. It's both played straight, subverted and then played straight again.
* FindTheCure: "Trouble in Lumpy Space". Jake gets "the lumps" when Lumpy Space Princess accidentally bites him, so Finn and they must go to lumpy space and find a cure before sunset.
* FingerGun: Jake does this in "The Duke".
* FireBreathingDiner: Happens to the Earl of Lemongrab in "Too Young" when he gets fed Bubblegum's incredibly spicy cleaning potion.
* FireBreathingWeapon: Finn and Jake use one each at the beginning of "Business Time".
* FireballEyeballs: Marceline in "Heat Signature".
* FisherKingdom: [[ExactlyWhatItSaysOnTheTin The City of Thieves]] is an interesting take on it, as unlike other Fisher Kingdoms, this one just has so many acts of thievery that you're just gonna wind up stealing something back without any actual mental or physical changes.
* FiveManBand: [[TheHero Finn]], [[TheLancer Jake]], [[TheBigGuy Marceline]], [[TheSmartGuy Bubble]][[TheChick gum]], and [[TagalongKid Beemo]] form one in 'What Was Missing'.
* FlatEarthAtheist: Princess Bubblegum in "Wizards Only, Fools!" Despite living in a world filled with magic and wizards, she believes that it's all just [[ClarkesThirdLaw science that hasn't been explained yet.]]
* {{Flatline}}: [[spoiler:Happens for a short time when Princess Bubblegum is in the hospital in "Mortal Recoil", but then her body mass stabilizes itself.]]
* FlatWhat: Finn and Jake give one when they hear someone crying for help, only to find out it's a teddy bear that needs help hanging streamers for a party.
* FlippingTheTable: In "What Have You Done?", both the [[http://www.flickr.com/photos/84568447@N00/4976599207/ title card]] and the episode proper, and both by Princess Bubblegum.
* {{Foil}}: [[WordOfGod Ice King and Scorcher]]. The Scorcher's fire powers and competency contrasts with Ice King's ice powers and incompetency.
* {{Foreshadowing}}: In [[spoiler:the Ice King's genderbent fanfic]] "Fiona and Cake", when Cake joking puts on the Ice Queen's crown Fiona immediately smacks it away, yelling, "No! You might catch her crazy!". In "Holly Jolly Secrets Part II", it is revealed that [[spoiler:the Ice King's crown is what caused his insanity]].
** In "The Eyes", where a horse spies Finn and Jake all night, at the beginning Finn remembers all the adventures they have in that week, one of them is rescuing yet another princess from the Ice King, and he screaming: ''I only want to be happy''. The end of the episode shows [[spoiler: The Ice King disguised as the horse spying Finn and Jake to learn how to be happy.]]
** In "Lady & Peebles", when PB first uses her heart signature machine, there are ''five'' heart signatures on her and Lady's location. [[spoiler: At the end of the episode, it is revealed that this is because Lady is pregnant.]]
** In "King Worm", part of Finn's dream involves Ice King being chased by a giant monster made out of Gunther clones. Two of these Gunther mash-up monsters show up in [[DreamingOfThingsToCome a later episode]], "Reign of Gunthers".
*** There also Finn's reflection in the mirror towards the end of the episode, foreshadowing [[spoiler:the alternate universe Finn that appears at the very end of ''The Lich''.]]
** This one is a bit of a stretch, but in "Who Would Win" Finn mentions wanting bionic legs. [[spoiler:While the alternate universe Finn does not have them, he does have a bionic arm.]]
** Lemongrab is obviously very hungry in "Mystery Dungeon." For example, he asks Ice King to make himself into food, and he ''eats chewed-up pie out of a rat's mouth.'' This foreshadows "All Your Fault" where it's revealed that he starved himself because he uses all his food to make new life for his kingdom.
** In "Marceline's Closet," Marceline is shown to have a diary with the name "Gunther" on it, which foreshadows [[spoiler:her history with Ice King.]]
** In a way, "Billy's Song" from the episode "His Hero." According to the song, Billy:
*** "Slayed an evil ocean" - In a later episode Finn had to face his fear of the ocean
*** "Cast the Lich King down" - The Lich appears in several episodes
*** "And the the evil Fire Count captured a damsel fair" - Possibly a hint at the events involving the Fire King and Flame Princess
*** "Also... he fought a bear!" - A specific bear appears in a few episodes, and that bear [[spoiler:unintentionally helped revive the Lich for the second time]]
** The green lady from "The Creeps" and "King Worm" foreshadows the events of "The Vault." As do all the hints about PB being TheAgeless. As do all of the incarnations of Finn that lack a right arm.
** It was pretty much telegraphed since season 1 that [[spoiler: Finn would lose his right arm. He was one of only two incarnations (the other being Fionna) that ''hadn't'' lost the arm.]]
*** [[spoiler:That is, until "Escape from the Citadel," where the arm finally came off.]]
* ForgotAboutHisPowers: Jake does this often when he and Finn face conflicts that would be easily resolved with Jake's growing or shrinking powers.
** Not to mention his apparent [[RealityWarper imagination powers]] which were only used in one episode.
** Or the ice ninja powers or wizard spells that Jake and Finn gain, neither of which are ever used outside of the episodes that introduce them.
** This happens to Ice King in "Princess Potluck" when he wonders how he can magically crash the potluck. Then he remembers that he can use ice magic (which he seldom uses for evil anymore).
--->'''Ice King:''' Oh, lovable, forgetful me!
* ForgotICouldFly: In "The Monster", the Fat Villagers cornered the Lumpy Space Princess at a cliffside, even though she could just float up.
* ForTheFunnyz:
-->'''Jake:''' ''([[{{Toilet Humor}} farts]])''\\
''([[HairTriggerAvalanche fart causes avalanche]] and Finn and Jake are spotted)''\\
'''Finn:''' ''(angrily)'' ''Jake''...\\
'''Jake:''' ''(regretfully)'' I thought it would be funny...
** Finn's entire adventure in "What Is Life?" is for the goal of seeing Jake get pied in the face.
* FountainOfYouth: [[spoiler: Present in the Season 2 Finale. Princess Bubblegum ends up being shattered to pieces in order to defeat [[BigBad the Lich]] who [[DemonicPossession possessed]] [[BodySurf her body.]] Not all of her pieces could be located, causing her to revert to a 13 year old girl, who looks even younger.]]
* FourFingeredHands: Varies. Even the character sheets for storyboard artists explicitly state that the characters can have either 3, 4 or 5 fingers, depending on what is needed or looks good.
** Billy, the legendary hero, has six fingers on both hands, at all times.
** Parodied in "Five More Short Graybles", where the supposedly finger-themed stories were actually based on the five tastes. Cuber laughs at the viewer for thinking people have five fingers.
* FrankensteinsMonster: [[spoiler: Princess Monster Wife, built by the Ice King by taking various random body parts from ''all'' of the other princesses.]]
* FreeFallFight: There's one at the beginning of "His Hero". Finn & Jake vs Swamp Giant.
* FreezeFrameBonus:
** In every episode a waving snail appears for at least one scene. [[WordOfGod They actually forgot to put it in "Trouble in Lumpy Space", but added it for reruns.]] [[spoiler:In the second season finale, this takes a dark turn when it turns out that Lich performed a BodySurf to take it over as his new host.]]
** [[http://24.media.tumblr.com/tumblr_ll8muhstNk1qba9rro1_500.gif A horse in a party hat, a grave robber, a taco, yo whadup, a nerd]]
** One scene in "What Have You Done?" has a book with a string of numbers on it: 5318008. Converted to "calculator" font and turned upside-down, this reads "[[GettingCrapPastTheRadar boobies]]".
** [[http://www.flickr.com/photos/84568447@N00/5121994734/in/set-72157624985646625 Can you spot the NES]] in this background from "Blood Under the Skin"?
** A license plate on a sunken car briefly seen in "Storytelling" reads [[http://www.flickr.com/photos/84568447@N00/5149179133/in/photostream/ "AT43VR"]]: ''Adventure Time'' forever!
** The ducks feeding outside Finn and Jake's house at the beginning of "Her Parents" all have two heads.
** The heart monitor at the beginning of the episode "Mortal Recoil" displays the first 15 digits of pi, "3.1415 92653 58979"
** In "Hitman", if you pause at the right time you can read the note the Scorcher leaves behind when the Ice King convinces him Finn and Jake are dead.
** In "Apple Thief", when Tree Trunks is held up to the mirror, the message "�- - WUZ HERE" can be seen to the side. In Morse code, "�- -" means "A. T." [[CaptainObvious Guess what "A. T." means.]] No, not "Apple Thief"!
** In "Beautopia", we see a Lub Glub shaking a skull. Look carefully at this skull; the skull is wearing a hat with bunny ears. Who else wears/wore a hat with bunny ears?
*** There is also a cat skeleton suspiciously similar to Cake on the pile of skulls underneath.
** In "Marceline's Closet", we get a barrage of bonuses.
*** If one looks at the title card, you'll see that Marceline has [[GlamourFailure no reflection]] in the mirror.
*** As Marceline enters her room, we can see a copy of Madonna and Child.
*** Marceline's journal has the word GUNTER on it.
*** Her trophies on a wall include a head and arm that look like that could belong to the Pale Man from ''[[Film/PansLabyrinth Pan's Labyrinth]]''.
** In Hunson's house, there is a portrait of him ''golfing with Peppermint Butler''.
** The dictionary in "Mystery Train". It has entries for "mathematical" and "Ice King", and one of the meanings for "pancake" is "Natasha's pet cat".
** Near the end of "Gotcha!", you can briefly see a page from Lumpy Space Princess's manuscript.
** [[spoiler: Simon Petrikov can be seen holding the Enchiridion in a newspaper clipping in "I Remember You".]]
** During the opening of "The Lich" when Billy starts laughing [[spoiler:he briefly turns into The Lich]] during one frame. Foreshadowing [[spoiler:his possession by The Lich.]]
** During "The Chamber of Frozen Blades," Finn holds up the Ice King's first edition of "Ninjas of the Ice" with the barely visible subtitle "The Art of Fridjitsu."
** In "All Your Fault" one scene shows Lemongrab's brain imprints. It's far too much to read in one go, of course, but there's some goodies to spot if you freeze the shot, such as "[[ContinuityNod Oh what a good boy am I]]." [[http://adventuretimeconspiracies.tumblr.com/post/41810720879/i-have-no-idea-if-i-submitted-this-correctly You can see some of them here.]]
** In the photograph of Simon and Betty seen on the tapes in "Holly Jolly Secrets Pt 2", you can see a furry figure in the background. Later, in the episode "Betty", one of the books is written by the two of them and called "My Friend the Yeti".
* FrickinLaserBeams: Princess Bubblegum has a flying swan that ''shoots lasers''.
* FromBadToWorse: [[ExactlyWhatItSaysOnTheTin "From Bad to Worse"]]. The Candy Kingdom gets stricken with a zombie epidemic. Okay, [[SequelEpisode nothing that hasn't happened before]]... except this time, Princess Bubblegum (AKA the only one who knows how to make the decorpsinator serum) gets zombified as well.
** And then Finn's, Jake's, Lady Rainicorn's, and Lumpy Space Princess's attempts to make the serum cause the zombies to grow wings, become incredibly strong, and [[ArsonMurderAndJaywalking get awesome lips]].
* TheFullNameAdventures: The old title--''Adventure Time with [[NameAndName Finn & Jake]]''.
* FunnyBackgroundEvent: "MY TUMMY'S BREATHING FIRE!"
* FurBikini: Jungle Princess.
* TheFuture: About 1000 years after the present world.
* FutureSlang: A lot. Characters use many made-up words such as "Blooby", "Driz" and "Donk."
[[/folder]]

[[folder:G]]
* GagLips: The result of LSP's formula in "From Bad To Worse".
* GainaxEnding: "Tree Trunks" ends with the titular character taking a bite from the fruit they've been pursuing all episode. She explodes. [[EsotericHappyEnding Then we see her running, laughing, through crystal.]]
** That one got a MindScrewdriver.
** Also "Evicted". After a whole episode of dealing with [[CuteMonsterGirl Marceline]] taking over Finn and Jake's house, she gives it back... and they return to find a giant worm that blasts them with a ray of some sort and asks them to hug it. This is partially a BrickJoke, as a similar worm appeared earlier in the episode. Later on, the episode "King Worm" gives this scene [[MindScrewdriver something of an explanation]]...but see below.
** The end of "Power Animal" when Jake suddenly says "[[LampshadeHanging Let's]] [[IAmAHumanitarian go eat]] [[LetsMeetTheMeat Cinnamon Bun!]]"
** ''Adventure Time'' evidently loves this trope. There was another one in "Chamber of Frozen Blades" when Gunter, one of the Ice King's penguins that he took to the hospital, lays an egg that hatches... into a floating pink kitten. Then the Ice King says, "[[NoodleIncident Gunter, why didn't you tell me? Oh-ho-ho, Gunter-]]" as he is interrupted by Finn and Jake both kicking him.
** Another example is at the end of "Her Parents" when Finn and Jake taste "Soy People," which is said to taste exactly like humans... of which Finn is the last because Rainicorns ''eat'' them. Not at all helped by Jake actually saying, "Finn, you taste delicious!" The real kicker is Finn, understandably wary at first, taking a bite of the face on his plate and then smiling agreeably.
** At the end of "Mystery Train", the train falls off an open cliff and lands on a gelatin person. Jake says that this wasn't planned, and if it wasn't there they would have all died.
** The most intense one yet comes in the form of "Holly Jolly Secrets" whose ending should really speak for itself. It involves a deeply disturbing and realistic portrayal of the Ice King going insane [[spoiler:due to his crown]].
** "Hug Wolf"
** The ending of "Sons of Mars" with the freed tiny manticore.
--->'''Manticore:''' I am the true coward, hiding from sincere expressions like a vampire in the nude who hides from the light. Thank you, brave hero. I was freed from bottle jail, but my new prison is shame. MY NEW PRISON IS SHAME!\\
'''Finn:''' What did he say?\\
'''Jake:''' ...He said his new prison is shame.
** The ending of "King Worm". [[spoiler:For some reason, it perfectly mirrors the ending of "Evicted!". The staff probably did that just to mess with the audience and make them think the entirety of events from that episode to this one was just a dream. AND THEY SUCCEEDED.]]
** The end of "The Lich". [[spoiler: Finn and Jake are dragged into an alternate universe where Jake is an ordinary dog, Finn looks like his dream mirror self from "King Worm", and Finn's mom is alive. Oh, and there's no mention of what happened to the Lich.]]
*** This episode has a followup that explains it, however.
** The ending of "The Great Bird Man" in which [[spoiler:Xergiok meets a [[BrickJoke lonely mermaid]] and they fall in love... right after [[MoodWhiplash Xergiok was about to commit suicide]].]]
* GameBreaker: Flame Princess invokes this trope in Vault of Bones. Where Finn was going through the motion of searching for the correct way, Flame Princess could simply destroy or burn anything in her way. [[invoked]]
* {{GASP}}: Finn and Jake's reaction to the Glasses of Nerdicon in "The Real You".
* {{Gayngst}}: ''Heavily'' implied with Bubble in "BMO Lost"
* GenderBlenderName: [[spoiler: Tiffany from "My Two Favorite People".]]
** Also Gary... the Mermaid Queen, from "The Witch's Garden", who gets BonusPoints for also not looking anything like a traditional mermaid.
* GenderFlip: [[ExaggeratedTrope Exaggerated]] with "Adventure Time with Fionna & Cake". ''Everyone'' is gender-flipped. And we mean '''everyone'''--even the background characters (e.g., Mr. Cupcake is Ms. Cupcake, the Gumdrop Lasses are Gumdrop Lads, [[http://rebeccasugar.tumblr.com/post/9693381246/fionna-and-cake-monday-at-8-adam-and-i-really hell, even the staffers]]). They even went UpToEleven and changed the CreatorCameo of Adam Muto to Rebecca Sugar in the opening sequence.
* GenericCuteness: Many of the characters.
* {{Genre Savvy}}: When Finn and Jake journey to the land of the dead, Finn is cautious about drinking from the river.
--> '''Talking Skull:''' Yesss... drink the water.\\
'''Finn:''' Whoa. Okay, Jake, don't drink the water!\\
'''Jake:''' Aww c'mon, I'm so thirsty!\\
'''Finn:''' Dude! That skull wants you to drink the water! It's bad water!\\
'''Talking Skull:''' ''[[ReversePsychology Don't]]'' [[BriarPatching drink the water.]]\\
'''Jake:''' [[GenreBlindness See? That means good, right?]]
** Also in "Mystery Train", Finn concludes that Colonel Candycorn cannot be the murderer because in murder mysteries, the culprit is not usually the one suspected first.
** In "Morituri Te Salutamus", Finn and Jake knew before even entering the arena that the doors would magically shut and they would have to fight a multitude of gladiators. Finn wanted to go in anyway being the BloodKnight that he is. [[spoiler:Finn was also GenreSavvy enough to invoke UnspokenPlanGuarantee and know that the big, magical sword the Fight King had was the Fight King's SoulJar.]]
** In "Dad's Dungeon", Finn and Jake knew that the flower path was a trap, but they took it anyway because the other path had a [[LawOfDisproportionateResponse really gross dude in it]]. [[spoiler:It's implied that Finn also knew that the apple would kill him, but he was DrivenToSuicide at the time]].
* GeometricMagic: The [[SummoningRitual incantation for summoning Marceline's dad]] requires a circle. With a smiley face on it. Also works for banishing him.
* GetOut: In "Mortal Recoil", Finn gets so angry at Ice King for [[spoiler:accidentally dropping Princess Bubblegum into a well of toxins]] that he simply tells him, "Just ''get OUT OF HERE!!''"
* GettingCrapPastTheRadar: [[Radar/AdventureTime Has its own page.]]
* GhostAmnesia: The deceased in Ooo apparently get this, as seen in "Ghost Princess".
* GhostlyGlide: Marceline on occasion though she usually floating a majority of the time.
* GiantFootOfStomping: Jake does this to [[spoiler:Ash]].
* GiantSpider: The episode "Web Weirdos" features these.
* GirlOnGirlIsHot: In "All Of The Little People", Finn blushes when he makes Tiny!Bubblegum and Tiny!Flame Princess CatFight over Tiny!him. Note that the real women would never do this and it was {{foreshadowing}} his {{fetish}} for violence.
* GladIThoughtOfIt: From "Wizard":
-->'''Finn:''' You don't need to quit your job.\\
'''BUFO:''' I don't?\\
'''Finn:''' Nah. You just need to stop taking credit for ideas that aren't yours.\\
'''BUFO:''' Hey, great idea! ''(to himself)'' Glad I thought of it...
* AGlitchInTheMatrix: Happens in [[spoiler:"Adventure Time with Fionna and Cake".]]
-->[[spoiler:'''Fionna:''']] But there is ''one'' guy I'd do ''anything'' to date... [[spoiler:THE ICE KING!]]\\
[[spoiler:'''Prince Gumball:''']] ''What?!''\\
[[spoiler:'''Cake:''']] Me, too! [[spoiler:Ice King]]'s the ''REAL'' DEAL!
** In "King Worm", when Finn and Jake wake up [[spoiler:for the first time, Finn's hat ears are still unusually long, hinting that it's still a dream.]]
* GoIntoTheLight: The concept behind "Ghost Princess" was that said character could not move on because she needed to know how she died.
* GoldenMeanFallacy: Instead of choosing to wish for the Ancient Psychic Tandem War Elephant and letting Jake die, and wishing for Jake to heal while sacrificing the Ancient Psychic Tandem War Elephant, [[spoiler:Finn ''uses'' the elephant to wish Jake back to full health and bring the Hot Dog Knights back to life.]]
* {{Golem}}: Jake defeats one in "The Limit".
* GoneHorriblyRight: In "Incendium", Jake's goal was to find Finn a new love. When he showed Flame Princess "Finn", he made her think that he didn't like her, which sent her on a rampage. She chased Jake back to the tree fort, where she met the real Finn, and slapped him for being screwy with her; Finn somehow developed a crush on her. So all in all, Jake succeeded in getting Finn a crush... on possibly the most insane, deadly, and evil princess in Ooo.
** Further escalates in "Hot To The Touch", when it becomes clear that Finn is truly smitten with her. His {{Adorkable}} attempts at wooing her leads to [[spoiler: the Goblin Kingdom nearly being burnt down to the ground.]]
* GoneHorriblyWrong: The Decorpsinator Serum from "Slumber Party Panic".
** [[spoiler:The creation of Lemongrab.]]
** [[spoiler:The creation of Goliad.]]
* GoshDangItToHeck: By necessity. However, they do manage to sneak some ParentheticalSwearing in:
--> '''Finn:''' You just like to [[BreakThemByTalking say poop that jacks with my brain]]!
* GRatedSex: Maybe, in a particularly kinky scene in "Breezy" involving Finn and LSP.
* GratuitousGerman: Anytime Princess Bubblegum exclaims something in surprise or shock, it is likely to be in German. For instance, in "What Have You Done?", she says "Ich bin so glücklich, ich könnte, ich könnte..." meaning "I'm so happy I could, I could...".
* GreatBigBookOfEverything: The Enchiridion.
* GreatOffscreenWar: Both the Mushroom War and the war between dogs and rainicorns qualify.
* GreenHillZone: The "Grassland" region of the Land of Ooo.
* TheGrimReaper: Just like all the other mythical creatures in this show, he's a bit [[OurMonstersAreDifferent different]] than what you'd expect. He's a ''zen gardener''.
* GroinAttack: Apparently, excellence in this is a heroic attribute. Finn does this one a good number of occasions. One time he even did it to a giant... after being transformed into a giant foot.
--> '''Two-Headed Giant:''' ''OUR CROTCH! OUR [[{{Zardoz}} EEEEVIL CROTCH!]]''
** Marceline gives [[spoiler:Ash]] a {{groin attack}} after he basically tells her to go to the kitchen and make him a sandwich. "Also, pickles."
* GrossOutShow: Early seasons of the show had elements of this, but later episodes... [[DarkerAndEdgier not so much]].
* GrowsOnTrees: In "The Witch's Garden" the eponymous witch has a garden full of donut bushes (and she plants a cupcake plant in the end). In "The Pods", magic bean sprouts give: [[RidiculouslyCuteCritter adorable pigs]], sparkly wands and an endless supply of icecream. [[spoiler: The pigs are pure evil, though.]]
* GutPunch: As if it wasn't clear by now that no one is safe anymore [[spoiler: both [[SacrificalLion Prismo and Root Bear Guy]] die within a few episodes of each other]].
[[/folder]]

[[folder:H]]
* HaHaHaNo:
-->'''Peppermint Butler:''' It's just a prank, man, for laughs!\\
'''Lemongrab:''' Prank...? For laughs...? Yes, of course... Just a prank... for laughs. ...Hahahah[=aH=]AHAHAHA''HAHAHAHAHAHA (Peppermint Butler begins to laugh, too) HAHAHAHAHAHAHAHAHAHAH''--[[DisproportionateRetribution Twelve years dungeon... All of you. Dungeon. Seven years, no trials. C'mon, let's move it.]]
** Happens in "The Vault" when Shoko asks PB for her amulet.
* HairFlip: A rather impressive one in "To Cut a Woman's Hair" [[spoiler:by Finn]].
* HairWings: The Ice King uses his beard like a pair of small wings to fly. He of course loses this ability when he shaves it in "Loyalty to the King".
* HalfDressedCartoonAnimal: [[ZigZaggingTrope Zig-Zagged]] with Jake: He is in fact wearing a pair of translucent, form-fitting pants spun from spiderwebs by pixies.
* HalloweenEpisode: [[DrivingQuestion "The Creeps"]] and [[ZombieApocalypse "From Bad To Worse"]].
* HandBlast: Finn gains this ability after equipping Billy's gauntlet.
* AHandfulForAnEye: Finn and Jake do this to the Farm in "Who Would Win"; throwing mud into his face to blind him before pulling his pants down to trip him.
* HandSeals: Fridjitzu requires the use of these.
* {{Handwave}}: Finn is supposed to be the [[LastOfHisKind only human]] in the show [[spoiler:aside from Susan Strong, possibly]]. However there is a recurring background character named "Phil" who is [[CreatorCameo based on a former worker on the show, Phil Rynda]], and he looks incredibly human. When someone on the crew is asked what the hell Phil is, they usually say something along the lines of, "[[ShapedLikeItself He's a Phil.]]"
* HappilyAdopted: [[spoiler:Finn the human was HappilyAdopted into Jake the dog's family as a baby.]]
* HappyEnding: [[EnforcedTrope Enforced]] in "Tree Trunks".
* HappyPlace: Ice King's Imagination Zone.
--> '''NEPTR:''' Sleep well, Poppy, in your imagination zone filled with beautiful princesses.
* HardWorkMontage: The house-hunting montage in "Evicted!"
* HeWhoFightsMonsters: In "City of Thieves" this happens to Finn, resulting in a rather DarkerAndEdgier version of himself. Complete with a BadassCape.
* HeartbeatSoundtrack: The background music for "Ricardio the Heart Guy" at one point.
* TheHeartless: Fear Feaster, who is the embodiment of Finn's [[{{Phobia}} fear of the ocean]].
* TheHedonist: Party Pat's character in "The Belly Of The Beast" suggests this. Laid-back attitude, parties and drinks honey-flavored energy drinks ''constantly'', and doesn't seem to care or be aware that his people are in a monster's stomach and are in danger of being killed and digested.
* HeelFaceTurn: [[spoiler:Marceline's dad in "Daddy's Little Monster"... kinda. It's always "kinda" with this show.]]
* HellYesMoment: In "Dad's Dungeon", it looks like Finn's going to die believing that both Jake and Joshua think he's stupid and can't do anything right. Break out the [[http://www.youtube.com/watch?v=gQnY-g_Vpdw phat remix of his dad's messages]] and the [[InfinityPlusOneSword demonblood sword]].
* {{Hellfire}}: [[FireLevel The Nightosphere has this. And the Fire Kingdom.]] [[spoiler:Princess Bubblegum summoned Hellfire when she was possessed by the Lich in "Mortal Recoil".]]
* HeroicBSOD: Jake goes pacifist in "Crystals Have Power" when he hurts Finn while roughhousing, which makes him recall a time where he did the same with his brother, and his father's response was "[[MetaphoricallyTrue You're gonna hurt everybody!]]" Eventually he has a vision of his father, who says "I meant you'll beat up ''everyone evil''! Let me finish next time!" Jake responds, "Oh, well, I'm over it then!"
** Finn goes through a short one in "Susan Strong".
** Finn has another in "Dad's Dungeon" arguably the worst in the series as [[spoiler: at one point he was going to eat an apple that would leave him in a position to get eaten by witches, [[DrivenToSuicide fully aware of what would probably happen to him]]. ]]
** The next episode, if you can believe it, has an even worse one. When Princess Bubblegum rejects him again, he just lies on the floor staring at framed pictures of her, and doesn't even respond when his ''house catches on fire''.
* HeroicBuild: Younger Billy.
* HeroicFantasy: The Cartoon
* HeroicSacrifice: [[spoiler:Stormo, a Candy Spinx created from Finn's DNA, sacrifices himself by [[SealedEvilInADuel trapping himself forever in a duel with the evil, power mad Goliad.]]]]
** [[spoiler:Alternate Simon Petrikov]] sacrifices himself to stop the Mushroom War in "Finn the Human/Jake the Dog".
** [[spoiler:Lemonjohn in "All Your Fault"]] after he gains emotions and realizes the only way to feed the [[spoiler: Lemon people is by becoming Lemon candy]].
** [[spoiler:Root Beer Guy]] sacrifices himself in "Something Big" to buy time for the Candy Kingdom to rally its defenses when Maja and Darren attack.
* HesBack: At the end of "His Hero", Billy decides to return to fighting evil after Finn and Jake convince him it still works by showing him an old lady they just saved by beating up a monster.
* HesDeadJim:
-->''(Susan slams her face to the ground)''\\
'''Jake:''' Oop. Ya killed 'er.\\
'''Finn:''' I ''did?!''\\
'''Jake:''' Yep... Felled by surface-world germs.\\
''[[SubvertedTrope (Susan starts crawling on the ground)]]''\\
'''Jake:''' [[ILied Heh... Just kiddin'.]]
* HesGotAWeapon: The butterfly from "The Other Tarts".
-->'''Jake:''' Finn, he's got a [[FrickinLaserBeams laser]] [[RayGun gun!]]
%%Hey It's That Voice entries go on the Trivia tab.
* HiddenDepths: The whole show. For a wacky, colorful kids' show, there's an undercurrent of melancholy to it, especially during Ice King-related storylines.
-->'''Finn:''' Who in the world is sadder than the Ice King?
* HighSchoolDance: Parodied in "Trouble In Lumpy Space" with the ''Weekly'' Promcoming Dance.
* HijackedByGanon: It turns out that the horse that was constantly annoying Finn and Jake with its presence is really [[spoiler:the Ice King]] in disguise.
* [[HisNameIs His Or Her Name Is]]: Happens in "Mystery Train" with Colonel Candycorn.
* HisNameReallyIsBarkeep: Doctor Princess, who breaks the show's pattern of princesses only being known by their titles (Lumpy Space Princess, Wildberry Princess, etc.) by not being an actual princess at all; "Princess" is just her surname.
* HissBeforeFleeing: Peppermint Butler senses [[spoiler: the Lich possessing Princess Bubblegum]] and does this.
* HistoricalHilarity: The famous scene in the pilot where Finn meets AbrahamLincoln, in the past. On Mars. ...In his mind.
* HoistByHisOwnPetard: The Ice King.
** The two-headed giant gets one too.
** Donny as well.
** [[spoiler:The Fight King when Finn uses his own plan (forcing warriors to kill their friends) by requesting a bigger sword to kill Jake with. Fight King throws him his own sword, which Finn then snaps.]]
* {{Hologram}}
* HopeSpringsEternal: "Go up the wizard steps..."
* HospitalGurneyScene: In "Mortal Recoil".
* HospitalHottie: Doctor Princess.
* HowDareYouDieOnMe:
-->'''Ice King:''' Princess, if you die on me, I will never forgive you!
* HowDidThatGetInThere: Said by the Ice King when Finn finds [[spoiler:Doctor Princess in his bag.]]
* HowDoIShotWeb: Finn has trouble using the Gauntlet the first time around.
* HowDoYouLikeThemApples: The witches' apples from "Dad's Dungeon" which [[spoiler:cause the consumer to be trapped in a giant apple to be eaten by the witches.]]
* HulkingOut: Finn, when something happens to Jake. Then he's talked down by Jake and calms down.
* HumanityEnsues: At least four different processes are shown to give human attributes to the otherwise inanimate objects, cyclops tears, power of the ice crown, lightning from "ordinary" storms and the ancient sleeping magi of life giving. Usually this will put a human-like face on the object. It is unclear how much this has to do with the general MoeAnthropomorphism of the series.
%%* HumanitysWake
* HumanlikeHandAnatomy: Played with to disturbing effect on an episode, where a deer is attacking the citizens of Candy Kingdom. During the climax the deer stands up on its hind legs and, to everyone's shock, ''takes off its front hooves'', revealing human fingers beneath.
* HumanoidAbomination: Marceline's dad in various ways. [[DoNotTauntCthulhu Do not threaten him]] while he's sucking souls.
** Scorcher might count, having vast inexplicable powers and being completely mute.
** The Freak Deer counts in a way. A lot of the horror in its portrayal is that it's simply a completely silent, completely sinister humanoid deer, with all the alien otherness that implies.
* HumanKnot: In ''Lady & Peebles'', Ricardio [[ShowingOffTheNewBody shows off his new body]] by twisting Lady Rainicorn in a knot and throwing her to the side.
* HumanPopsicle: The Businessmen from "Business Time".
* HumanSubspecies: The more optimistic view is that humanity died out in the sense that it was mutated from its original baseline. Kind of like the way dinosaurs are extinct, but birds are still around.
* TheHyena: The monster at the end of "Dad's Dungeon".
* HypercompetentSidekick: The Businessmen.
* HyperventilationBag: The gag shows up when Bubblegum asks Finn to do a science talk. He freaks out and starts hyperventilating, so Jake turns into a paper bag.
* HypnotizeThePrincess: [[spoiler:Ice King does this in "When Wedding Bells Thaw" to get a princess to marry him.]]
* HypocriticalHumor: In "Trouble In Lumpy Space", [[spoiler:just before Jake goes full Lumpy, he says he'll never turn his back on Finn. Then he goes full Lumpy, and the other Lumpies call him over, and he says he'll be right over, as soon as he turns his back on Finn. And he literally does.]]
** In "Dad's Dungeon", when Jake is viewing Dad's prerecorded message, Dad says that since it's a prerecorded message, he can't hear what Jake says. Later, Dad says "Butts are for pooping!" when Jake says "But-".
** Need we forget Lemongrab shrieking [[NoIndoorVoice "STOP SCREAMING!! WHY ARE YOU SCREAMING?!"]]
* HypotheticalFightDebate: 'Theoretical fightonomics' is taught in a worm college Finn and Jake visit. [[spoiler:Werewolf Queen]] always wins, apparently.
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