What is What Stinks? Face?
The face chicks get when they see something or someone that they feel they're too good for. It usually consists of cringing the nose, raising the upper lip, inhaling deeply, and squinting as if something stinks horribly.
Joe: "Dude, d'ya get that chick's number?"
Dick: "Na man, I introduced myself and she gave me the "What stinks?" Face."