Painter's Palette
A method of shaving one's balls where a deposit of shaving cream is kept on the thigh for the shaver to grab from as needed to relather his balls.
Person #1: Man, shaving my balls in the shower was such a mess until I heard about the painter's palette. Now I can selectively apply the shaving cream to my balls!
Person #2: Wait, what?
Person #2: Wait, what?