hindquarters

hindquarters (http://definr.com/hindquarters)

     n 1: the fleshy part of the human body that you sit on [syn: buttocks,
           nates, arse, butt, backside, bum, buns, can,
           fundament, hind end, keister, posterior, prat,
           rear, rear end, rump, stern, seat, tail, {tail
          end}, tooshie, tush, bottom, behind, derriere,
           fanny, ass]
     2: the part of a quadruped that corresponds to the human
        buttocks [syn: croup, croupe, rump]