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imp: a derivation of Barney Stimpson's "Suit up!" (CBS's How I Met Your Mother); an imperative to put on one's sluttiest finery
"Barney told Robin to "Slut Up!"

slut up cunt 

variation of "what up mate" or "whats happening dude?"

(see: slut up)
Joe: slut up cunt?
Grandma: nuttin much mofo
slut up cunt by j0n June 29, 2003

Slut Up or Shut Up 

it's what you say to them stuck-up bitches who won't put out.
Girrrrrrl: "I can't, I'm here with my friends."

Bro: "Slut Up or Shut Up, girl!"

Slut it up 

The act of women (or men) acting like a slut. Typically used when referring to actions you are intending to do in the future.
I got this awesome slutty outfit for Halloween this year. Think I should wear it?

Slut it up girlfriend!
Slut it up by Tommy C. Britt January 5, 2009

hook up slut 

A female who makes out with any guy at any time, but will not progress any farther than kissing.
I thought I was going to get laid last night, but it turns out the chick was just a hook up slut.
hook up slut by dentite March 7, 2010

make-up slut 

Someone that is ALL about make-up. They, eat, sleep and breathe make-up.
Person #1: OMG that girl's make-up looks SOO good!
Person #2: She looks like a make-up SLUT!
Person #1: Is that a bad thing?
Person #2: Defintely not!
make-up slut by Yerrrmotherrr June 19, 2008