(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.
alternetive term for the "Blackberry" PDA device, especially when the Buttberry's owner constantly uses it in an annoying fashion, such as during lunch, dinner, while driving, during cunnilingus, etc...