five knuckle shuffle on the ol' piss pump Share definition Flag Masturbation, jerking off. My mom walked in on me this morning doing the five knuckle shuffle on the ol' piss pump. five knuckle shuffle on the ol' piss pump by Jeff23 November 7, 2006 0 0 Get merch Get the five knuckle shuffle on the ol' piss pump mug. Buy Now — $32.95 See more merch