Top Definition
The preps on campus that think they're the shit. And they are (shit). Comprised of the sluttiest girls and the most fake (read pretend athletic) guys. Prep posse goes out of it's way to disturb campus.
I went to DHall but prep posse was there so I killed myself rather then deal with them.

Prep posse all gave each other STDs because they all fucked the same sluts.
by Leaaf123 September 12, 2013

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