History ShoutOut / AssassinationClassroom

!!Anime Only
* Episode 1: In the dub, Koro-sensei mentions that regrowing body parts is a luxury the kids won't have if [[Film/AChristmasStory they accidentally shoot their eyes out from the BBs.]]
* Episode 3: Koro-sensei's reaction to Karma stealing what little money he has left is to a TheScreamParody.
* Episode 6: Koro-sensei's shoddy visual clones can be seen cosplaying several famous ''Shonen Jump'' characters: Goku from ''Manga/DragonBall'', Ichigo from ''Manga/{{Bleach}}'', the titular character of ''Manga/{{Toriko}}'', Neuro and Yako from ''Manga/MajinTanteiNougamiNeuro'', Ryotsu from ''Manga/{{Kochikame}}'', and Takasugi from ''Manga/{{Gintama}}''.
* Episode 9: Ritsu reminds Fuwa of a popular detective manga where an AI tries to take over the world with an electronic drug. This is the entire premise of the HAL arc from ''Manga/MajinTanteiNougamiNeuro'', the author's previous series.
* Episode 10: During Irina's English lesson, there's a conversation between [[Series/SexAndTheCity Samantha and Carrie]] written on the chalkboard.
* Episode 11:
** When [[spoiler: Itona reveals that he is Koro-sensei's younger brother]], the entire class envisions the two of them as Goku and Raditz from ''Manga/DragonBall'', Kenshiro and Raoh from ''Manga/FistOfTheNorthStar'', and Andromeda and Phoenix from ''Manga/SaintSeiya''.
** Shiro reads an issue of ''Shonen Jump'' that features [[Manga/OnePiece Usopp in his Dressrosa outfit]] on the cover.
* Episode 18: Irina Jelavic's Super Secret Skill #3 -- Wigs make for great disguises. She apparently owns one for Manga/{{Naruto}}, [[Manga/MajinTanteiNougamiNeuro Yako]], and Koro-sensei.
* Episode 19: After pointing out the culprit who poisoned her classmates, Fuwa gives us a full-out ''Manga/MajinTanteiNougamiNeuro'' plug when talking about detective series in Shonen Jump, complete with a giant portrait of Neuro and a large heap of lampshading.
* Episodes 21 [[CallBack and 43]]: Koro-sensei launches himself into the air using two flag poles, stretching two of his arms out wide to to do so. As he does, Koro-sensei shouts "[[Manga/OnePiece Gum-Gum Slingshot]]!". Made even funnier when you realise that Koro-sensei's English voice actor is Creator/SonnyStrait, who also plays a member of Luffy's crew.
** In the Latin American Spanish dub of the same episode, they used the phrase "They tied me like a PIG!" (¡Me amarraron como PUERCO!), which came out from a Mexican show named "[[https://www.youtube.com/watch?v=4oFZJSMwWG0&ab_channel=risafacilpuntocom El Show de la Baradilla]]", and the phrase itself came out from a very memetic RealLife incident involving a drunk driver.
* Episode 22:
** TheStinger in the [=TV=] version is a drawing of Koro-sensei's [[Film/Terminator2JudgmentDay "thumbs up" in molten metal]], marking the break between the first and second seasons.
** Grip, Smog, and Gastro are seen playing a UsefulNotes/Nintendo3DS game together.
* Season 2: Episode 1: While trying to [[ShipperOnDeck pair up]] Karasuma and Jelavic, the students and Korosensei react to one of their failures by imagining Karasuma as the [[Manga/AttackOnTitan Colossal Titan]].
* Season 2: Episode 6: When Korosensei is using his Mach speed to do a revision session with his students, [[Manga/OnePiece Luffy's impression]] appears as a shadow in the multi images.
* Season 2: Episode 10: Fuwa states that there was going to be a more impressive reaction when the man tries the food, but [[Manga/FoodWars another cooking anime]] beat them to it.
* Season 2: Episode 11: While taking the second exam finals there's a scene where a giant robot comes out of the dirt. Karma precedes to climb onto it and throw a grenade into a hole on the top of it, This is a reference to ''Film/StarshipTroopers'' where the same tactic is used to take out one of the "Tank Bugs" in the film.

--->'''Koro-sensei:''' Karasuma-san, can you hear me?!! Why are the culprits escaping from jail?!!
--->'''Karasuma:''' ''That's my line, you damn monkey cop!!''

* Episodes 21 [[CallBack and 43]]: Koro-sensei launches himself into the air using two flag poles, stretching two of his arms out wide to to do so. As he does, Koro-sensei shouts "[[Manga/OnePiece Gum-Gum Slingshot]]!".

* Season 2: Episode 21: Koro-sensei stuffs Class 3-E into an oversized purse to take them on a world tour with his speed. In the English dub, Koro-sensei shouts "[[Manga/OnePiece Gum-Gum Slingshot]]!" just before takeoff. Made even funnier when you realise that Koro-sensei's English voice actor is Creator/SonnyStrait, who also plays a member of Luffy's crew.

* Episode 3: Koro-sensei's reaction to Karma stealing what little money he has left is to do TheScream.

* Chapter 12: When wearing a headband for each student showing their weak subjects, Koro-sensei wears a ''Manga/{{Naruto}}'' headband for [[BookDumb Terasaka]]. The headband makes a comeback before the final exams, but this time many of his "shadow clones" wear it.

* Episode 21: Koro-sensei launches himself into the air using two flag poles, stretching two of his arms out wide to to do so. As he does, Koro-sensei shouts "[[Manga/OnePiece Gum-Gum Slingshot]]!"

** TheStinger in the [=TV=] version is a drawing of Koro-sensei's [[Film/Terminator2JudgmentDay "thumb's up" in molten metal, with the dub "I'll be back!"]] (Referring to the hiatus at the end of Season 1)

* Chapter 12: When wearing a headband for each student showing their weak subjects, Koro-sensei wears a ''Manga/{{Naruto}}'' Headband for a student that's bad in many. The headband makes a comeback before the final exams, but this time many of his "clones" wear it.

* Episode 22: TheStinger in the [=TV=] version is a drawing of Koro-sensei's [[Film/Terminator2JudgmentDay "thumb's up" in molten metal, with the dub "I'll be back!"]] (Referring to the hiatus at the end of Season 1)

* Chapter 16: The "[[http://www.mangareader.net/assassination-classroom/16/18 ruination sensei]]" is a blantant shoutout to the [[http://static.guim.co.uk/sys-images/Guardian/Pix/online/2012/8/22/1345647849262/Ecce-Homo-by-Elias-Garcia-006.jpg Botched Ecce Homo Painting]].

** The students reason that [[spoiler: the virus plaguing the class was orally transmitted]]. Cue the disturbing imagery of a victim taking a bite out of ''Franchise/{{Anpanman}}'', a visual metaphor for [[spoiler: the virus]].

** Irina's tablet has a list of her personal contacts. One of them looks like ''Anime/{{Doraemon}}''.

* Chapter 13: Two of his "clones" can be seen wearing a WesternAnimation/MickeyMouse and a ''Anime/{{Doraemon}}'' hat.

** While [[DreadfulMusician singing a song about the unit circle]], Koro-sensei's face looks like Takeshi Gouda's, a character from ''Anime/{{Doraemon}}'' infamous for his tone-deafness.

* Chapter 104: Shows Koro-sensei dressed up like ''Anime/{{Doraemon}}'', as both have an immeasurable number of abilities hidden up their sleeves and pockets (respectively).

* Chapter 150: The [[Creator/JunjiIto art]] and the scene depicting Koro-sensei's suggestion to [[spoiler: hijack a spaceship]] mirrors the scene where an angry mob watches a carnivorous planet approach the earth during the final hours of ''Manga/HellstarRemina''.

* Chapter 117-118: During the annual SchoolFestival, Class E manages to attract not only [[ContinuityCavalcade characters that had interacted with them before]], but also [[TheCameo celebrities]] such as Switch Girl, [[Manga/YuYuHakusho the Toguro Brothers]], [[Manga/TheDisastrousLifeOfSaikiK Kusuo Saiki]], [[Manga/KurokoNoBasuke Kuroko Tetsuya]] and even ''[[Manga/{{Golgo13}} Golgo 13]]''!

** One of the photographs is of Fuwa doing the same pose as [[Manga/OnePiece Luffy in Gear Second]], with smoke from a moskito coil standing in for the steam.

* Chapter 116: Fuwa makes a [[AsideGlance sly shout out]] to fellow ''Shonen Jump'' manga ''Manga/ShokugekiNoSoma'' when a customer reacts favorably to Class E's homemade food.

* Season 2: Episode 10: Fuwa states that there was going to be a more impressive reaction when the man tries the food, but [[Manga/ShokugekiNoSoma another cooking anime]] beat them to it.

** When Red Eye is reminiscing about past missions, one of his victims is [[Series/SesameStreet Elmo]]. [[SuperMarioBros Mario's hat]] appears in the same panel.

* Chapter 162: One of the photographs is of a student doing the same pose as [[Manga/OnePiece Luffy in Gear Second.]]

* Chapter 28: Itona's "handler" Shiro wears an anti-Sensei fabric outfit with an upside-down version of [[ComicBook/{{Watchmen}} Dr. Manhattan's]] hydrogen symbol.

* Season 2: Episode 11: While taking the second exam finals there's a scene where a giant robot comes out of the dirt. Karma precedes to climb onto it and throw a grenade into a hole on the top of it, This is a reference to the film Starship troopers where the same tactic is used to take out one of the "Tank Bugs" in the film

** When Irina starts teaching the kids how to speak in foreign languages, basing her lessons around her experience in seducing foreigners, a female student pictures [[Franchise/PiratesOfTheCaribbean Jack Sparrow]] and another student pictures [[VideoGame/TombRaider Lara Croft.]]

** Another photo, a theme photo of religion, has Koro-sensei playing the UsefulNotes/FlyingSpaghettiMonster.

* Chapter 30: Shiro is seen reading a volume of ''Manga/ChounouryokushaSaikiKusuoNoSainan''. Both series have a crossover chapter in ''Magazine/ShonenJump''.

* Chapter 117-118: During the annual SchoolFestival, Class E manages to attract not only [[ContinuityCavalcade characters that had interacted with them before]], but also [[TheCameo celebrities]] such as Switch Girl, [[Manga/YuYuHakusho the Toguro Brothers]], [[Manga/ChounouryokushaSaikiKusuoNoSainan Kusuo Saiki]], [[Manga/KurokoNoBasuke Kuroko Tetsuya]] and even ''[[Manga/{{Golgo13}} Golgo 13]]''!

* Episode 22: TheStinger in the [=TV=] version is a drawing of Koro-sensei's [[Film/Terminator2 "thumb's up" in molten metal, with the dub "I'll be back!"]] (Referring to the hiatus at the end of Season 1)
* Season 2: Episode 1: While trying to [[ShipperOnDeck pair up]] Karasuma and Jelavic, the students and Korosensei react to one of their failures by imagining Karasuma as the [[AttackOnTitan Colossal Titan]].