In a internal combustion engine when the cylinder is oversized and the piston will rock side to side producing a knocking sound.
Chad's car has really bad pistion slap
Nobis가 작성 2003년 07월 29일 (화)
1 more definition
The act of fuckin a loose hoe, whose pussy is so loose a man's crank will slap around in it.
When I was fuckin Cathy i suffered from piston slap.
Paul Trahan가 작성 2003년 04월 21일 (월)