History ShoutOut / TheGrimAdventuresOfBillyAndmandy

** One of Lord Byron's quotes in the same episode is lifted nearly word-for-word from the Lord Byron in the 1986 British film, ''Film/{{Gothic}}''.
---> '''Lord Byron''': ''(In a state of TranquilFury)'' Switzerland is a cursed, selfish, swinish country of brutes! ''([[MoodWhiplash swoons]])'' Based in the most romantic region in the world!

** The beatboxing monster ([[Tuckerization who also happens to be named for a member of the show's crew]]) is probably a reference to the beatboxing alien from ''Film/MenInBlackII''.

** Billy shouts that he's going to [[Film/TheDayTheEarthStoodStill "klaatu barada nikto"]] the aliens as he's pummeling them into submission.

** Billy's fantasy is a pastiche of ''WesternAnimation/JonnyQuest'', with Billy as Jonny, Billy's dad as Dr. Quest, and Irwin as Hadji.

* The tombstones shown in the intro sequence have the names of several short-lived Cartoon Network shows such as the aformentioned Con Carne, ''WesternAnimation/TimeSquad'' and ''WesternAnimation/WhateverHappenedToRobotJones''. The names were somewhat blurred in the final version albeit disordered from the post-production effects.

* When the main three get into a [[TransformationRay shape-shifting fight]] with Eris's AppleOfDiscord, Grim is turned into the weird-looking creature that WesternAnimation/{{Daffy|Duck}} became in "WesternAnimation/DuckAmuck", complete with a defeated "[[CatchPhrase You're despicable]]."

* "Billy and Mandy Begins" had {{Shout Out}}s to ''Franchise/IndianaJones'', ''Literature/TheSilenceOfTheLambs'', ''{{Film/Airplane}}'', ''Franchise/StarWars'', and ''{{Franchise/Ghostbusters}}''. The title itself might also be a reference to ''Film/BatmanBegins'', since that episode aired around the same time that movie came out.

* Skarr is a parody of Herr Starr from ''Comicbook/{{Preacher}}'', being a bald, one-eyed villain subject to various humiliations throughout the series.

** The demon bunny tries to run over Pud'n by driving a truck that has [[{{Franchise/Transformers}} Optimus Prime]]'s emblem and colour pattern. The entire sequence, including the half-burnt bunny limping out of the flames after the truck crashes, evokes the chase scene from ''Film/TheTerminator''. The bunny's echoing voice and overlarge eyes are reminiscent of Frank from ''Film/DonnieDarko''.

* Other than [[Franchise/SpiderMan the reference made in the title]], "Spidermandy" features a scene where Billy's parents watch a show called ''[[Series/EverybodyLovesRaymond Everybody Loves]] Film/RainMan''.

* The Dinobonoids from "Fiend is Like Friend Without the "R"" and "Toys Will be Toys" are a parody of DINOSAUCERS.

* Billy is admitted to a prestigious dancing academy, whose headmistress is actually a witch who feeds on her students to retain her immortality. This is a WholePlotReference to Creator/DarioArgento's ''Film/Suspiria1977''.

** When Mandy sees the Hokey Monsters that Grim brought to life wreaking havoc on Endsville, she says, [[ComicStrip/{{Popeye}} “I’ve had all I can stands and I can’t stands no more!”]]
* In TheStinger for "The Love That Dare Not Speak Its Name", Grim recites the entire “Twitterpated” monologue from ''WesternAnimation/{{Bambi}}''.

* The tombstones shown in the intro sequence have the names of several short-lived Cartoon Network shows such as the aformentioned Con Carne, ''WesternAnimation/TimeSquad'' and ''WesternAnimation/WhateverHappenedtoRobotJones''. The names were somewhat blurred in the final version albeit disordered from the post-production effects.

* The tombstones shown in the intro sequence have the names of several short-lived Cartoon Network shows such as the aformentioned Con Carne, ''WesternAnimation/TimeSquad'' and ''WesternAnimation/WhateverHappenedtoRobotJones?''. The names were somewhat blurred in the final version albeit disordered from the post-production effects.

* "Hey, Water You Doing?" parodies ''WesternAnimation/TheSnorks'' and a few characters from [[WesternAnimation/TheLittleMermaid a memorable undersea animated film]].

** The episode also features narration from a [[Series/TheTwilightZone(1959) Rod Serling-esque]] narrator who ultimately gets beaten up for his trouble.

** The episode "Mandy the Merciless" was a straight-up parody of ''Literature/GodEmperorOfDune'', with Mandy in the Leto II role, Billy in the Duncan Idaho role, and Grim still as Mandy's servant. Spice is replaced with cinnamon, which spice is said to similar to in smell and texture.

* The creators of the show claimed that ''Big Boogey Adventure'' special was an indirect shout out to ''Film/StarTrekIITheWrathOfKhan'', since like Wrath of Khan, a minor, one-time villain makes a comeback in a movie length special.
** During the race in River Styx, you can actually hear the ''VideoGame/MonkeyIsland'' theme playing, [[SuspiciouslySimilarSong maybe]].

** [[Film/RobotMonster Ro-Man]], [[Franchise/StarWars Darth Vader]] and [[Literature/TheInvisibleMan Griffin]] appears as among the jurors.

* Pinface is a blatant reference to Pinhead of ''Franchise/{{Hellraiser}}'' fame.

* In "Herbicidal Maniac", General Skarr gains the ability to command [[GreenThumb army of plants]], which he then orders to "[[Theatre/TheSoundOfMusic Bloom and grow! Bloom and grow FOREVER!]]"

* In the episode "Wishbones", the demon bunny tries to run over Pud'n by driving a truck that has [[{{Franchise/Transformers}} Optimus Prime]]'s emblem and colour pattern.

* "Son of Nergal" has the kids sent off to "winter camp" - where the axe-wielding counselor is named [[Film/TheShining John Jack Daniel Torrance]].

* ''Film/TheTerminator'' gets one when Billy asks [[ItMakesSenseInContext the ghost of Lord Byron]] for "a phased plasma rifle in the 40-watt range" (Lord Byron wisely steers him away).
* The episode "Hurter Monkey" alone is LOADED with them; you've got the Franchise/{{Terminator}}, Film/TheMatrix, Creator/JohnWoo (with DisturbedDoves and DualWielding), Grim's [[Creator/ChristopherWalken Christopher Walken-esque]] attorney Harvey, ''Film/{{Se7en}}'', and ''WesternAnimation/FamilyGuy''. Also Dickie at one point calls Grim [[Franchise/MastersOfTheUniverse Skeletor]].

* All plots involving Nigel Platter are parodies of Literature/HarryPotter.
** Lord Voldemort is replaced for Lord Moldybutt, and much like in the original books, saying his name brings bad fortune to the speaker.
** The Dumbledore stand-in, Dean Toadblatt, changes voice actors later in the series and even his appearance somewhat, invoking TheOtherDarrin that Dumbledore went under in the films.

* Sperg tosses Billy's bicycle over a sidewalk cliff saying "This is [[Creator/ShelSilverstein Where the Sidewalk Ends]] Baby!" The cliff is also a reference to the book's cover.

* In the episode "Smarten Up" Billy’s cat Milkshake eats an intelligence enhancing bookworm that was meant for Billy. After Billy complains about never being able to pass a math test now that the worm is gone Milkshake states “…I'm very well acquainted with matters mathematical. I understand equations, both the simple and quadratical.” These are lyrics from the “Major-General's Song” from the 1879 opera ''Theatre/ThePiratesOfPenzance''.

** Billy's line "Play that funky music Grim boy" is a clear reference to the song "Play That Funky Music" by Wild Cherry

* In Secret Snake Club's debut episode:
** When Mandy goes to Grim for his services, Grim has been regulated to the doghouse, which he says is too hot, has no running water, [[ComicStrip/{{Peanuts}} and the stupid Red Baron keeps flying by and shooting at him.]]
** After Grim is forced to reboot the computer, the screen shows some text as it's restarting. At the end of it, the final line says "[[Film/TheMatrix matrix]] okay. [[{{Sequelitis}} sequels not so good.]]"

** In "Pandora's Lunch Box", Grim makes a reference to Pulp Fiction with one line:

* When Billy is asked what weapon he wants for a roleplaying adventure, he shouts "{{TabletopGame/Warhammer|40000}}!".
* Nergal and his Nergalings are a shout-out to ''TabletopGame/Warhammer40000'''s Chaos God of Decay, [[PlagueMaster Nurgle]]. Nergal's words to his son about romance sound suspiciously like Nurgle's attitude toward Isha, whom he imprisoned in his lab. Both beings are the namesakes of the Sumerian deity Nurgal.

* One episode has a bunch zombies in a plane which has [[Franchise/FridayThe13th Air Voorhees]] written on its side.

* In the short "Wish Unfulfillment", when Thromnambular is revealed to be a genie, Billy [[WesternAnimation/{{Aladdin}} asks Thromnambular to let him take a girl on a magic carpet ride and remarks that genies should do impressions that only his dad would understand]].

* In "Runaway Pants", Grim blissfully says [[Music/{{Eurythmics}} "Ah, sweet dreams are made of this!"]] after a brief ImagineSpot where he pictures Billy's head blowing up from trying to do sit-ups too hard.

* "Hey, Water You Doing?" Parodies ''WesternAnimation/TheSnorks'' and a few characters from [[WesternAnimation/TheLittleMermaid a memorable undersea animated film]].

* "Hey, Water You Doing?" Parodies ''WesternAnimation/TheSnorks'' and a few characters from [[WesternAnimation/TheLittleMermaid a memorable undersea animated film]].

* The score for the series was influenced from the works of ''Music/WendyCarlos''.

* Hey, Water you doing?: Parodies “The Snorks” and a few characters from a memorable, undersea, animated film.