- (vulgar, slang) The anus; often in reference to anal intercourse.
- She likes it up the pooper.
- (in the term party pooper) One who poops out on an activity; one who dampens the mood by lack of participation or negative attitude.
- (rare) One who poops; or, poops well.
- Jimmy's toilet training is finally over; he's becoming a good little pooper.
- An infant.