1. A big ass piece of human shit, fresh from the oven (asshole) and good enough to eat.
Billy: Mommy, what's for lunch?
Mommy: Hang on darling, mommy just has to scoop up a little of this brown pie off your father's chest, then we can eat at the table like a family does.
when a girls privates have been stained brown from failing to wipe properly ( from front to back not back to front )
"the pictures taken in the motel of her privates showed obvious signs of a dirty brown pie"