noun: (very rare, outside the Bible) A male given name from Hebrew
noun: (humorous) Popular supposed name for a caveman or other prehistoric man.
noun: Initialism of own goal. [(sports) A goal that results from a player putting the ball or puck into the goal of their own team; the resulting goal being scored for the opposition.]
noun: Alternative form of O.G. [(by extension, US, slang) Anything associated with an earlier, more traditional, and perceivedly more authentic era.]
adjective: Alternative form of O.G. [(US, slang) in the manner of an O.G. (sense 1 or sense 2); traditional, authentic, old-fashioned, or old school]