Memphis cowbell

The act of standing over ones friend/dirty groupie while they sleep. Start to masturbate/yank it. Just before you reach your climax smack the unsuspecting friend/dirty groupie in the forehead and spray all over his/her face.

Also referred to as the Wisconsin pillow snake.

hey look at me, im standing over Jimi Slowtit. watch while i spray him in the face with spunk. (slap) (sploosh)

ha you just got the Memphis cowbell