1 definition by Brosef Bronson

An acronym meaning All About The Bros.

A heterosexual male who enjoys the camaraderie of fellow men and will always place his bros first. He goes to great lengths to preserve a friendship, regardless of the consequences.
"Bro, Alex turned down that hot chick to hang out with us tonight."
"Yeah, he's AATB."

"Did you just pay for all of our drinks?"
"Of course, I'm AATB!"
by Brosef Bronson April 30, 2014
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