Exclamation by one who needs to urinate really badly. Usually said in the words, "I need to take a pisstol pete maravich!" Also included, a soothing of the balls after a really long satisfying piss.
Pistol Pete Maravich was a well known pro basketball player who was known to be one of the best ball handlers of all time.
Oh my god, I can't hold it anymore! I need to take a pisstol pete maravich!