Example : He deserves a good kick in the butt.
Are you going to sit on your fanny and do nothing?.

Synonyms : arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush