- buttock, cheek - either of the two large fleshy masses of muscular tissue that form the human rump
--1 is a kind of body part; body part; body part; body part
--1 is a part of
--1 has parts: gluteus, gluteus muscle, gluteal muscle, glutetorso, trunk, body; 1 sense of buttock ; buttock, cheek; torso, trunk, body; buttocks, 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; torso, trunk, body; 1 sense of buttock ; buttock, cheek; torso, trunk, body