A person who will often partake in the act of sniffing another's anus or sphinctal region. No one is a true butt-sniff unless they truly enjoy the act off butt-sniffage.
Person 1 bends over
Butt-sniff sniffs the rear of person 1 with a satisfied look on their face
Person 2: God you're such a Butt-Sniff
by n0ddy96 September 2, 2010
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When you snort a line of coke off a thick Brazilians ass
Man, did you hear James did a Brazilian Butt Sniff at the party last night?
by Jimmy Duncan March 6, 2021
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Having the quality of something nasty, but in an oddly humorous way.
"Dude, did you see Sally throw up the other night?"
"I did! It was butt-sniff-alicious!"
by cowpie52 February 24, 2009
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