similar to the common vaginal "fart" or "queef"... BUT (no pun intended) is different in the fact that it is expelled from the anus rather than the vagina.
Timmy pulled his cock out of Johnny's ass and was surprised by the expulsion of air between Timmy's cheeks...
"I swear it wasn't a fart, it was just a buqueef."
the occurrence of a manfarting, accidentally or otherwise, on a close friend who is also male.
While playing the fast-paced action video game, Halo Reach, Carlos failed to score the game-winningfrag for his team, as he was distracted by Todd's pestilent buttqueef.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.