spank-it-ass Share definition Flag (noun) a big, round, meaty, ample derrierre ready for spanking and/or gnawing. When that centaur of a woman bent over, I undressed her wide spank-it-ass with my roving eyes. spank-it-ass by The Pillager November 5, 2005 0 0 Get merch Get the spank-it-ass mug. Buy Now — $32.95 See more merch