Best used with a european accent, preferably a Ukrainian or a Russian.
Said to a male when he is chickening out, in the most derogatory way possible while gesturing with pelvic thrusts. Generally used when the guy refuses to have another drink.
Anuvaj: "I don't want to do a keg stand, I have to work in the morning"
Masi: "Its ok, you don't have to drink as long as you know you are a fucking POUSSY. You're fiance is ok with you being a POUSSY, then ok, be a big POUSSY"