These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: 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.
Fountain of Memes: A highly quotable movie, a lot of the lines from it have taken on their own meaning and get quoted frequently.
Karen in particular.
Fridge Brilliance: 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 this troper thinks we 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.
Harsher in Hindsight: Regina's line "I couldn't invite her to my party, I mean, right, she was a lesbian!" to Cady became this trope when Lindsay Lohan started a romantic relationship with a woman.
Though it also counts as a "Funny Aneurysm" Moment depending on your view, the movie follows 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 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.
This shot◊ has become surprisingly prophetic. note Yes, that is Lohan in the garbage bin.
Neil Flynn, who at the time was best known for his then-current role as the Janitor from 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 The Middle.
At the end, Regina channels her rage into sports. At the climax of Red Eye, Rachel McAdams'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.
"And none for Gretchen Weiners, bye." becomes either funnier or harsher, depending on your sense of humor, when you consider that out of the four actresses playing the Plastics, Lacey Chabert has easily faded from the public eye the most.
Did you have an awesome time? Did you drink awesome shooters, listen to awesome music, and then just sit around and soak up each others awesomeness?
Let me tell you something about Janis Ian. Click for the rest We were best friends in middle school. I know, right? It's so embarrassing. I don't even... Whatever. So then in eighth grade, I started going out with my first boyfriend Kyle who was totally gorgeous but then he moved to Indiana, and Janis was like, weirdly jealous of him. Like, if I would blow her off to hang out with Kyle, she'd be like, "Why didn't you call me back?" And I'd be like, "Why are you so obsessed with me?" So then, for my birthday party, which was an all-girls pool party, I was like, "Janis, I can't invite you, because I think you're lesbian." I mean I couldn't have a lesbian at my party. There were gonna be girls there in their *bathing suits*. I mean, right? She was a LESBIAN. So then her mom called my mom and started yelling at her, it was so retarded. And then she dropped out of school because no one would talk to her, and she came back in the fall for high school, all of her hair was cut off and she was totally weird, and now I guess she's on crack.
"I can't help it if I've got a heavy flow and a wide-set vagina."
"I can't go to Taco Bell, I'm on an all-carb diet! God, Karen, you're so stupid!"
It's like the rules of feminism.
"You know who's looking fine tonight? Seth Mosakowski." "Okay, you did not just say that." "What? He's a good kisser." "He's your cousin."
"YOU CAN'T SIT WITH US!"
"I'm not like a regular mom, I'm a cool mom."
"The limit does not exist!"
"You smell like a baby prostitute."
"Can I get you guys anything? Some snacks? A condom? Let me know! Oh, God love ya." Frequently used with Third Wheel-pictures on tumblr.
"Get in, loser! We're going shopping!"
"I saw Cady Heron wear army pants & flip-flops, so I bought army pants & flip-flops!"
Misaimed Fandom: Oddly, this movie seems to be most popular with the same kinds of people that it mercilessly makes fun of.
And with Periphery Demographic: 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 Testosterone Brigade listed below.
And even a few SNL aficionados by way of Fey. Still very much related to Testosterone Brigade in this case.
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.
Unintentionally Sympathetic: 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.