1.) what one puts on the ugliest person they are about to fuck; 2.) used to cover the pillow and serve as a protective outer layer against intruding elements
A woman with caked on make-up, usually found frequenting clubs and bars. When you take them home to bang them, you wake up in the morning with a ruined pillow-case from their massive amounts of make-up being rubbed off.
So after I banged that Pillow CaseRuinerlast night I had to go out and buy some new pillow cases! Shit was nasty!