Piss Daddy Share definition Flag An older gay man who engages in water sports with a younger gay man, especially a twink. Mark was the ideal piss daddy because of his large bladder and impeccable aim. Piss Daddy by ChickenLittle25 September 30, 2015 0 0 Get merch Get the Piss Daddy mug. Buy Now — $32.95 See more merch