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.."
the act of inhaling ones gas directly from their asshole causing the inhaling party to get "high"
hey i when i was licking her pussy, i started on her asshole, i wetted my thumb with my mouth, then stuck my thumb in her asshole, she farted, and i butthuffed it
Immune to the laws of physics and incapable of independent activity, the butthumper finds your rear bumper on an open stretch of highway, and stays there. The asshole may be using you as a shield against radar, or as a fuel-mileage aid, but usually he/she is talking on the phone and relying on you to scan the road for them.
Ten lanes of superhighway to drive on and this jerk has to tailgate me. What a butthumper.