short for: original gangster, old gal; used to be short for original until Ice T made a song called "original gangster"
by beernerd July 24, 2008

by GOAT FUKER March 9, 2005

Original (Derived from the term "Original Gangster, but with meaning applying beyond the world of gangsterdome)
by jnards007 March 24, 2009

by benoitbarnes December 9, 2008

by OG_NiBBaS December 21, 2017
