buttbeef 

A fart, esp. a rancid clothes-clinger, wall coater.

Damn Kristjanson, stop with the buttbeef. I'm gonna puke.

buttbeef by Narouk Al-Akhman May 19, 2003

Buttbeer 

Beers you store in your back pocket, so you don't show up to the party without something to contribute.

Don't forget your buttbeer, you know how Staci gets when you show up empty handed!

Buttbeer by zerophonik November 27, 2021

Buttbeer 

(transitive verb) to smuggle contraband into a venue (concert, sports, bar, etc.) that involves a pat down by stuffing said contraband into the back of your pants at the very top of your butt crack. Works best for ladies with large asses.

Becky buttbeered a Tecate into the club because she was too broke to pay marked-up bar prices.

Danielle buttbeered her umbrella into the Jay-Z concert and got through security with no problem.

Buttbeer by barefootgirl November 12, 2011