rump
US /rʌmp/
UK /rʌmp/

1.
臀部, 屁股
the hind part of the body of a mammal, especially a quadruped
:
•
The dog wagged its rump excitedly.
狗兴奋地摇着屁股。
•
The horse had a powerful rump.
这匹马有一个强壮的臀部。
臀部, 屁股
the hind part of the body of a mammal, especially a quadruped