P.F.S.O

Stands for Possibility For Significant Other, a person whom you have a crush on, and you know has a crush on you, but you just haven't started dating yet.

A: Have you and C hooked up yet?
B: Naw, we're just P.F.S.O's right now.

by Joe Jockstrap December 3, 2005

T.C.F.S.

Short for To Cool For School. Describes someone who thinks they are better than others.

I don't know what's up with Kat, all of a sudden she's T.C.F.S. and won't come out with us anymore!

by Ms. Me June 27, 2007

f.s.u.

Fuck shit up.

I'mma go f.s.u.

by Spikesfromcanada November 3, 2008

FSS

Fosho Shawty

You: Yo we goin to da movies tonite?

Friend: fss

by TyAM January 9, 2010

The 3 F's

Find em, Fuck em, Forget em

Example of the 3 F's at work:

Find beezy, fuck beezy, forget beezy.

by Only1Tyler February 26, 2011

FSA

Future Slut of America:
Used to define a girl who is young but dresses like a slut. Started seeing them when Britney Spears came out.
Syn: JoJo or Chicks on Disney

Senior: Damn man, your sister looks hott in that halter top.
Friend: Dude she's in the 8th grade.
Senior: Oh, I guess she's just another FSA.
Friend: Yeah, my mom probably shouldn't let her go out like that.

by Trip Aces January 4, 2005

FSU

FSU or Friends Stand United are a bunch of fags who gang up on people at concerts/start fights, they never fight man to man, they always, as the name implies, fight in numbers, usually against a single opponent. They seem to think that its cool to just stomp people who disagree with/disrespect them, as opposed to being a man and fighting 1v1. Also they often use weapons and cheap tactics against unarmed and often innocent concert-goers

Look it's a bunch of FSU losers

by Lenny's Blazed May 21, 2009