An unattractive or down right ugly chick who hangs out till last call and then swoops down and snags a guy who's decision making skills have been altered by drinking all night. This creature will scope out the room searching for beer goggle wearing fellows who normally wouldn't give her the time of day.
She tends to strike during the end of the night when most of the good looking girls have already left for the night and guys are getting desperate for a hook-up. It is usually the next morning when the victim sobers up when he realizes he has fallen prey.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)