Flufferbutt Share definition Flag A pair of buttocks wich are coverd in hair so that when you wipe your ass you will still have shit between your cheeks. Tom: I think guon has a bad case of the flufferbutt. Flufferbutt by hugmcmuffin November 25, 2016 0 0 Get merch Get the Flufferbutt mug. Buy Now — $32.95 See more merch