Top Definition
Short for Overly Attached Boyfriend.

A gender swapped version of a meme called "Overly Attached Girlfriend (OAG)."
A man who hovers, clings, and obsessively stalks his romantic interest into submission.
Boy: Where were you?! I'd appreciate if you were more vigilant about charging your phone. I haven't talked to you in 3.25 hours.

Girl: Relax, OAB, I told you I was going to pick up that casserole at my moms. My phone was in the car.
by Hq June 25, 2013

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