Definitions by HoboStrikeForce

Oof 

An exclamation of displeasure in seeing an unattractive female from a distance. Said loudly and quickly, usually accompanied with a quick head turn away.

Bro 1: Get on that over there. *Points towards unattractive girl*
Bro 2: OOF! *turns away*

Oof by HoboStrikeForce August 23, 2011