!!The first film:
* AlternativeCharacterInterpretation: Back when Janis and Regina were friends, Janis was the [[AlphaBitch queen bee]] and Regina was the innocent friend (like Cady) who was [[FromNobodyToNightmare slowly evolving]].
* BetterByADifferentName: Inverted by WebVideo/TheNostalgiaChick, who said that this film was a remake of ''Film/TheCraft'', only PlayedForLaughs, without the witchcraft, and a better film for it.
* CultClassic
* DesignatedHero: Janis. She is just as manipulative as Regina. She even taunts Regina by revealing her manipulations in front of the entire school. [[MoralDissonance She gets cheered for it.]]
** To be fair, she just delivered her revenge for Regina having made the whole school believe she was a lesbian for several years.
* EnsembleDarkhorse: Special mention has to go to Glen Coco, a character who we only see briefly, do not hear, and only hear one line about, and is still this trope for some.
--> Glen Coco? Four for you Glen Coco! You go Glen Coco.
** According to the special features, the Mathletes were the favorite characters of the cast and crew.
* FountainOfMemes: A highly quotable movie, a lot of the lines from it have taken on their own meaning and get quoted frequently.
** Karen in particular.
* FridgeBrilliance: Regina's line referring to Gretchen's nomination for Spring Fling Queen, saying that "She's not even pretty." In the original script, Gretchen was intended to be average at best, ugly at worst - mostly desirable because of her expensive clothes and lavish lifestyle. When the obviously pretty Lacey Chabert was cast for the role, this line was left in, and rather than just a statement, it becomes an insight into Regina's character. She truly believes that she is the queen bee because she deserves it, because she is superior to Karen and Gretchen. YMMV on which girl is most attractive, but fans can all agree that each of them is gorgeous, and only Regina's inflated ego could have resulted in such a surprise at Gretchen's nomination.
* GeniusBonus: The whole "We should kill Caesar" speech may just be a history report, but when taken out-of-context it sounds like something an actual Roman senator would say about Creator/JuliusCaesar.
* HilariousInHindsight:
** Regina's "I couldn't have a lesbian at my party..." takes on a whole new (and funny) meaning now that LindsayLohan has picked up a girlfriend, and now that Creator/AmandaSeyfried has done [[Film/JennifersBody two]] [[{{Chloe}} movies]] in which her character [[GirlOnGirlIsHot makes out (and in one case, has sex) with another woman]].
*** For an added bonus, take a look at the list of songs during the credits. One of them is performed by Samantha Ronson, Lohan's on-and-off girlfriend.
** The fact that the film was toned down to PG-13 after Lindsay Lohan was cast, due to her being too "family-friendly" to star in an R-rated film.
** And that Lohan considered that starring in the film as a "mean girl" would hurt her rep.
** Before playing Gretchen Wieners, LaceyChabert was the voice of [[TheWildThornberrys Eliza Thornberry]], who traveled around exotic lands with her parents like Cady.
** Though it also counts as a FunnyAneurysmMoment depending on your view, the movie follows [[LindsayLohan Cady]] as she falls in with the wrong crowd and goes from a mild-mannered nice girl into a party-happy temperamental bitch...
*** Lohan's constant arrests and trips to rehab afterwards have led to the [[MemeticMutation widespread idea]] that Regina got the last laugh on Cady in the end.
** Cady sees two girls making out at the Halloween party and looks very dismayed.
** [[http://static.tvtropes.org/pmwiki/pub/images/mean_girls_xl_05--film-A.jpg This shot]] has become surprisingly prophetic. [[note]]Yes, that is Lohan in the garbage bin.[[/note]]
** From the sequel, Jo, the protagonist who is mercilessly tormented by the AlphaBitch, is portrayed by Meaghan Jette Martin, who [[CampRock would later go on to play an Alpha Bitch herself.]]
** Neil Flynn, who at the time was best known for his then-current role as the Janitor from ''Series/{{Scrubs}}'', plays a father so clueless and passive as to come off as almost purposely apathetic - which also very closely describes Mike Heck, Flynn's current role in ''Series/TheMiddle''.
** At the end, [[spoiler:Regina channels her rage into sports.]] At the climax of Film/RedEye, Creator/RachelMcAdams's character goes to town on the villain with a hockey stick. Also the high school photo of Lisa playing hockey in ''Red Eye'' is a screenshot from this movie.
** Daniel Franzese (Damian) [[http://www.advocate.com/arts-entertainment/2014/04/22/mean-girls-actor-daniel-franzese-comes-out really is too gay to function]].
* MagnificentBitch: Janis Ian. Regina George herself has her moments too.
* MemeticBadass: He doesn't get any lines, but he still gets a lot of play on the internet, "Four for you Glen Coco! You go Glen Coco!"
* MemeticMutation, FountainOfMemes: On Website/{{Facebook}} and Website/{{Tumblr}} (''especially'' Tumblr), there is not a single line from this movie that is not memetastic. Seriously, it's too many to count. [[Memes/MeanGirls So we made a page for it.]]
* MisaimedFandom: Oddly, this movie seems to be most popular with the same kinds of people that it mercilessly makes fun of.
** And with PeripheryDemographic: This movie is popular with a lot of guys, particularly those who had a thing for Lohan back in the day and are nostalgic for her pre-trainwreck career or are fans of [=McAdams=], Seyfried or Chabert curious about their early careers. Also heavily related to TestosteroneBrigade listed below.
*** And even a few SNL aficionados by way of Fey. ''Still'' very much related to Testosterone Brigade in this case.
* OlderThanTheyThink: The often quoted line "It's like you've got ESPN or something" is a [[{{Malaproper}} malapropism]] probably almost as old as the channel itself.
* PopularityPolynomial: Mean Girls was moderately successful when it first came out before fading into obscurity. Its popularity suddenly exploded in TheNewTens into [[MemeticMutation one of the most quoted movies ever.]]
* SomeAnvilsNeedToBeDropped: Saying hurtful things about others, directly or indirectly, is extremely painful to everyone.
-->'''Cady:''' Calling somebody else fat won't make you any skinnier. Calling someone stupid doesn't make you any smarter. And ruining Regina George's life definitely didn't make me any happier. All you can do in life is try to solve the problem in front of you.
* TestosteroneBrigade: While written by [[Creator/TinaFey a woman]] and marketed heavily to teen girls, it was released at the height of Creator/LindsayLohan's [[HollywoodHypeMachine "it girl"]] popularity, and features Lohan and a number of other young women[[note]]Specifically, [[SheIsAllGrownUp former]] ''Series/PartyOfFive'' star LaceyChabert and then-unknowns Creator/RachelMcAdams and Creator/AmandaSeyfried.[[/note]] in provocative dress throughout. Lots of men went to see it for the hot high school chicks.

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!!The sequel:
* FanonDiscontinuity"
* FunnyAneurysmMoment: It's mentioned Tyler goes to Penn State in the epilogue. It's not the best school after the Sandusky scandal.
* InformedWrongness: What Jo did to Hope is pretty bad, but her tattling on Chastity for making out on school property is treated the same, even it is against school rules.
* JerkSue: Jo.
* ReplacementScrappy: Obviously, Mandi is no Regina George.
* {{Sequelitis}}: Apart from the element of Jo creating a group of Anti-Plastics and the climactic football game, the film is pretty much a remake of the first film, without the laughs. Also Jo's friends turning against her is extremely forced.
** Tina Fey repeatedly turned down offers to make the sequel. Now that the sequel was done without her, she regrets turning down the offer.
* UnintentionallySympathetic: Mandi's step-brother is ''really'' callous towards her. It's not exactly undeserved but since she seems to like him, Taylor can come across as a bit of a jerk and arguably even as a contributing factor to Mandi's bitchiness.
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