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A bro that you chill with for the sole reason that he consistently and reliably has alcohol with him.
"You know that George kid from down the hall? He's so damned annoying man-what were you doing hanging with him last night?"

"You're right, he's annoying as hell-but he's a great booze bro, so I put up with him"
by Jewbacca501 October 09, 2011
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