Skat ass Share definition Flag A combination for 'skinny fat ass'. It's someone who eats whatever they want whenever they want but they are somehow still skinny My boyfriend is such a skat ass, he eats like 6 meals a day but he is still so skinny! Skat ass by CarmanCop17 May 27, 2015 0 0 Get merch Get the Skat ass mug. Buy Now — $32.95 See more merch