Short form of badass. You call anyone a baig, who either, a) is epic b) is epic or c) is epic. A baig can also be a dude who has a large cock, or is sexually attractive.
Dude 1: WOAH DID YOU SEE WHAT THAT GUY DID???!!!
Dude 2: INORITE!!! HE'S SO BAIG!!!
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