A game when people take turns throwing ping pong balls at each others backs. The first person to quit loses. When the pong balls are dipped in water they hurt worst than you think, btw.
A: ooooo man your welt formed a red lump instantly T: I know man my love-handles make good targets!
(See Cocksmack) The welt left by the head of a circumsized cock after a bitch gets out of line when giving you head and needs to get smacked upside her head.
A mark left on someone's flesh resulting from being slapped by a penis. The impact of thebulbous glans penis and narrower shaft leaves a mark with a shape much like that of the fruiting body of a mushroom.
Your mother wasn't very careful with her teeth when she was sucking my wang, so I pulled my dong out of her mouth and beat her on the face with it, leaving several mushroom-shaped welts that developed into bruises that were clearly visible when she picked you up from school later that day.