What is Butthuff?
1.
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
2.
Idiot, loser, dork, ignoramus, non-thinking person
That butthuff actually submitted that definition to Urban dictionary?
See