Anilingus

Anilingus (also spelled analingus, and known in slang as rimming, rim job, eating ass, or tossing the salad) is an oral and anal sex act in which a person stimulates the anus of another by using the tongue and lips. It is also called anal–oral contact and anal–oral sex.

Pleasure for the giver during anilingus is usually based more on the principle of the act. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and the recipient may receive pleasure from external anal stimulation. People may engage in anilingus for its own sake, before anal penetration, or as part of foreplay. Studies confirm anilingus to be a sexual practice between women, though only practiced by a minority.