penitentiary darts Share definition Flag many prison inmates whacking off on a cracker, the last one to perform this action eats the cracker Timothy McVeigh now gets to enjoy the pleasure and nutritional factors of playing penitentiary darts. penitentiary darts by harry January 21, 2003 0 0 Get merch Get the penitentiary darts mug. Buy Now — $32.95 See more merch