O.G 

original ginger

He is a O.G because he has a fire crotch.

O.G by bowwowlover4 June 3, 2017

O.G 

Original gangster or old guy depends on the context

He's a O.G: noun eg old guy :2) noun; he's a old gangster

O.G by anonymous October 19, 2020

o.g 

You're probably here from cinimodde's "December 19 1999" definition. There's no "o.g" here made by a bob in 1999. I checked all 70 pages, man.

Person 1: Man, I heard that there was a rare 1999 definition called "o.g" made by bob on December 19th, 1999.
Person 2: Nope, that's a myth. But maybe one day, we will truly find a 1999 definition. The search continues.
Person 1: Aw man. That sucks ass.
Person 3: Hey guys, I found a "1999" definition!1!
Person 1 and 2: SHUT THE FUCK UP

o.g by the fresh king of bel air June 28, 2023

O.G. 

The abbreviation of "original ganster", a term overused by SGs or studio gangsters and millions of people that have never done anything gangsterlike in their life. It no longer a means anything.

Alex:"can I get a discount, I'm a OG, nigga" Cashier: "you're about as OG as Drake ya yesmaster ass nigga, get the fuck out my shop hood rat" O.G.

O.G. by Motheryucker April 11, 2016

O G 

O G means original gangsta
those tru gangstas from way back in the day that jacked ya and left nothing but you boxers and socks

Biggie and tupac were both OG's

O G by James White July 10, 2004

o.g. 

o.g. : original gangsta

a retired gangster who sits on the porch in the ghetto and preaches to the youngsters.

the o.g. showed me how to keep my own.

o.g. by bob and alpha mu December 19, 1999

O.G. 

Someone That Is an Original Gangsta.
- -
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being an all original gangsta.
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say dude for real-you a real O.G. aint ya?

O.G. by Big D-dallas December 18, 2005