Original Gangster 

90s gang affiliated rappers called themselves "Original Gangsters" or "OG" for short. It's a title for real, actual crime and gang affiliated gangsters. While a lot of black young men in the 90s called themselves gangsters a lot of them didn't commit any crime of even was a part of a gang. The term Original Gangster is less common today, mostly because the limitations of lyrics today, but Original Gangsters are still a thing.

Wannabe: Ayyyyy Imma shoot yo ass
Original Gangster: Shut the fuck up

Original Gangster by ShoshAhSheli October 9, 2017

original gangster 

The mobsters, bootleggers and gangsters of the 1920's and 30's, such as Al Capone, Lucky Luciano, and Bugs Moran. Anyone who claims otherwise are lying out their ass.

Person 1: ORIGINAL GANGSTER ON DECK.
Person 2: Shut the fuck up.

original gangster by notaog July 11, 2009

original baby gangster 

a specific set of the crip's street gang, most commonly associtated with the pelican bay prison crips.

yo, i heard that dudes an original baby gangster, if we roll wit' wit' dat nigga we got protection.

original baby gangster by mctro September 5, 2006