buttocks
臀部
buttocks
n : the fleshy part of the human body that you sit on; "he
deserves a good kick in the butt"; "are you going to sit
on your fanny and do nothing?" [syn: nates, arse, butt,
backside, bum, buns, can, fundament, hindquarters,
hind end, keister, posterior, prat, rear, rear
end, rump, stern, seat, tail, tail end, tooshie,
tush, bottom, behind, derriere, fanny, ass]