(ene'ma) noun. The process of pouring water into a rectum. This can be theraputic (to relieve constipation), for cleanliness (to clean the rectum before anal sex), or erotic (some people receive pleasure from the sensation of having a full bowel).
I gave my wife a 2-quart enema last night. She loved it.
I always give my girlfriend an enema before we enagage in rough anal sex.