Synonyms: keister, seat, rump, rear, rear end, posterior, prat, fanny, fundament, ass, behind, arse, backside, hind end, hindquarters, bum, buns, butt, buttocks, can, bottom, derriere, tooshie, stern, tail, tail end, tush, nates
Definition: the fleshy part of the human body that you sit on
Usage: he deserves a good kick in the butt; are you going to sit on your fanny and do nothing?
Similar words: body part
Definition: any part of an organism such as an organ or extremity