One who excretes semen onto another's butt in order to use it as polish for a prolonged buffing session. esp. with homosexual intent. Often used as an insult.
Guy #1: "I heard that Bryan and Sammy had anal sex with each other"
Guy #2: "Yeah, Connor got it on tape, they're buttbuffers from way back."
Guy #1: "Totally, they're queerer than a deer egg."
1. one who like to smell others's and their own gas.
2. one who like to stick their nose in other peoples' business.
3. an idiot, a moron.
4. a smoker, one who smokes.
"i am so sick of these butthuffers smoking outside of work."
"miss jameson is a total butthuffer. i dont hang out with her because she is always spreading gossip."
"these butthuffers got the entire show cancelled.."