Also found in: Dictionary, Thesaurus.
To defecate or (more commonly) urinate. Tom decided to get rid of the dog after it relieved itself on his $500 rug. We'll be pulling into a rest stop soon, if anyone needs to relieve themselves.
Euph. to urinate or defecate. He stopped by the side of the road to relieve himself. She needed badly to relieve herself, but there was no bathroom in sight.
Urinate or defecate, as in The puppy relieved itself in the middle of the floor. The use of relieve for these bodily functions dates from the mid-1800s.