what part of the body is buttock
buttock - either of the two large fleshy masses of muscular tissue that form the human rump. cheek. body part - any part of an organism such as an organ or extremity. torso, trunk, body - the body excluding the head and neck and limbs; they moved their arms and legs and bodies. glute, gluteal muscle, gluteus, gluteus muscle - any one of three large skeletal muscles that form the buttock and move the thigh.