(n.) Analingus. Bungalingus is the act of orally satisfying your partner's anus. A.K.A.: Licking the crinkles of you sweet-heart's puckered brown-eye.
This word is a combination of (1) the slang term "bung," which means asshole, and (2) the word "lingus," derived from the Latin word "lingua," which means tongue.
Yo wassup baby! I just washed down my a-hole. That's right, I cleaned the ol' dirty star. So how's about you gimmie some of that bungalingus?