I LIKE STEREOTYPES. THEY IS WELL FUN.
So, here I'll share with you some I know on some classes and you can share some others you've heard in the past or whatever.
Emos: Since your diary is the only one that gets you, why do you bother writing poetry on your MySpace/FaceBook/Bebo/etc. which resembles the darkness that is your life?
Goths: Don't worry, when you hit fifty, the dragons of hell shall take you to a magical paradise filled with pain, heat and Bullet For My Valentine.
Chavs: u off round 2 wilko's 4 a cuple of fags nd bttels of wite sprit lol?
Gangsters: N***er n***er, I'm so gunna cap a cap in yo' ass, foo'!
Nerds: I collect many things such as different coloured butterflies, different coloured stamps and different coloured inhalers which I still use! How cool is that!?
Gays: Now to choose my Newgrounds' aura! Oh my god! FAB!!! ^____________^
Straights: SEEN THE TITS ON THAT!? :D :D :D :D :D :D
Bisexuals: Bandwagon time!
Americans: I work at a fast food restaurant and weigh more than a baby elephant yaaaaay! ^_____^
Englishes: Footy's on so go stick the bloody kettle on, luv, arright? Also call our Dave in. He won't wanna miss this, like!
Eh, can't think of anymore so just share some common stereotypes you know of because we all get a right good laugh out of them.