jiggybutt Share definition Flag a younger male who is adorable in the most bizarre ways my younger brother, biran, is putting spaghetti all over his head at the age of 17. what a jiggybutt. jiggybutt by spiketheball2013 January 11, 2012 0 0 Get merch Get the jiggybutt mug. Buy Now — $32.95 See more merch