"Pretty Girl" -- proper noun -- Cassie

"pretty girl" -- noun -- the sweet scent left on a piece of clothing you've leant to a girl.

A very attractive girl, often found at Keg Parties, that all males cannot help but hit on because of her immense beauty. Often is under ridicule from a nearby Dirty Cow who is jealous because that fatty's boyfriend and/or exboyfriend obviously wants the pretty girl. (This riducule never leads to a fight, because the dirty cow is usually taken out by the linebacker in the corner, who assumed the cow was another dude).

To apply her own menstral blood in the form of make-up, in particular on her face, then to dance her around like a marionette singing in a soft tone, "pretty girl, pretty girl, who's a pretty girl?"