rump
rump \'r*mp\ n [ME, of Scand origin; akin to Icel rumpr rump; akin to MHG rumph to]rso 1a: the upper rounded part of the hindquarters of a quadruped mammal 1b: BUTTOCKS 1c: the sacral or dorsal part of the posterior end of a bird 2: a cut of beef between the loin and round 3: a small fragment remaining after the separation of the larger part of a group or an area