(Piffle) n. Pig FuckingWindow Licker. Someone who is so retarded, it is shocking that they haven't killed themselves. Usually used in a situation where their stupidity is directly affecting you.
Driver: Why are all these frackin PFWLs clogging up my roads?!?
My nowEX-friend is such a PFWL. He took a shit in my dryer... and...turned...it...on...