1. Someone highly respected in the urban community.
2. Someone experienced
3. An ex-Gangster.
1. What? He screwed J.Lo? What an ol g.
2. He's been playing pool for how long? Now that's an ol g.
3. That man used to be in the crips. He is an ol g.
by david October 08, 2003
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Stands for Online Game

Mostly used by gamers from Asia.
Guild Wars is a good OLG!
by NotKitten October 20, 2015
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