1 definition by kstarburst

Top Definition
A straight (or in-the-closet) man who acts like he is sexually interested in his brother/close friend. Derivitave: brother + homosexual
Taylor: That shirt looks really good on you, James.
James: Dude, I know we're best friends, but don't go all bromo on me!
by kstarburst May 26, 2008

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