noun
rump
RUMP/rʌmp/
The hindmost fleshy part of an animal's body.
The horse's rounded rump is visible beside its shifted tail.

Etymology
The word comes from a Scandinavian source and names the rear where the tail attaches. Corresponding Dutch and German words mean “trunk” or “torso,” connecting this body-part name with the broader body.
In context
laid bare all his muscles and nerves from the nape of his neck quite down to his rump
More examples
- She brushes dried mud from the horse's rump.
- The deer has a white patch on its rump.
- The sheep crowd together with their rumps toward the gate.
Forms
rump · rumps
Similar words
- hindquarters
- Refers to the whole rear region, often including hind legs.
- rear
- Names the back part generally, not specifically its flesh.