Anilingus is the "scientific" term for applying ones mouth to another ones asshole. Then plunging ones tongue deep within the anal cavity, and swirling it 'round; giving one's partner sexual pleasure.
We're not sure who asked for it, but Brian gave Dana anilingus.

Brian: "Okay, I'm plunging my tongue in now!"
Dana: "OH! Feels good mannnnn!"
by anilingus rexx August 20, 2010
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This is different than a rimjob. A rimjob would, however, be a precursor to anilingus. It is the act of plunging one's tongue into the anal cavity of your sexual partner and then swirling and thrusting aforementioned tongue in an effort to make said partner happy.

It is well advised to wash the anus that is to be pleasured thoroughly (and perhaps even douche) before attempting this.
After a thorough scrubbing, he performed analingus on her.
by Phil McKrackin March 5, 2005
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The art of licking an asshole for one's own pleasure, similar to cunnilingus, but performed in the rear. Also similar to annilingus which is to give pleasure to one's partner.
Mmm I love licking your pussy and performing cunnilingus, can I lick your ass now and perform anilingus? It will make my life complete!
by StanUK September 13, 2006
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Spreading apart those ass cheeks and licking ass
when doing anilingus you can taste what your partner had for breakfast
by jackdaniels September 1, 2004
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The king of oral stimulation of the anal orifice.
Most women refer to Gerard as Anilingus Rex due to his signiture move, "the Stonewall Jackson"
by Joe Brooks April 4, 2006
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