Anilingus

Anilingus (from the Latin anus + -lingus, from lingere, "to lick", variantly spelled "analingus",^[1][2]) is the oral and anal sex act in which a person licks the anus of another by using the mouth, including lips, tongue, or teeth. It is also called anal–oral contact and anal–oral sex, and is additionally known by slang names.

Depiction of girl-on-girl anilingus

Nicknames include: rimming, rim job, eating ass or tossing the salad.

References

1. Jordan Tate (2007). The Contemporary Dictionary of Sexual Euphemisms. DSt. Martin's Press. pp. 8–9, 106. ISBN 978-0-312-36298-0.
2. Jack Morin (2000). Anal Pleasure & Health: A Guide for Men and Women. Down There Press. p. 147. ISBN 0-940208-20-2.