Definitions by HalfLife3pl0x

B.G 

Before Gaben. In 2004 Gaben released Half-Life 2 and Counter strike source. This means any games before 2004 is x year B.G

GTA III was released in 2001, which means it's 3 B.G.

B.G by HalfLife3pl0x December 3, 2014