the rock wipes a monkeys' ass with that excuse Share definition Flag expression used when someone gives a pitiful excuse for thier actions. Smell what I'm cooking? The rock wipes a monkeys' ass with that excuse the rock wipes a monkeys' ass with that excuse by Gumba Gumba May 28, 2004 0 0 Get merch Get the the rock wipes a monkeys' ass with that excuse mug. Buy Now — $32.95 See more merch