o.g.

1.Abbreviation for the pseudonym 'Opera Ghost,' as used in the novel "The Phantom of the Opera."

2. Abbreviation for the tag name 'Original Gangster.'

1. 'Your obediant servant, O.G.'

2. Jamal is a true O.G., he fucked up some people in his day.

by Polythene Pam November 5, 2003

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O.G.

O.G., original gangster (pronounced "oh gee")

An O.G. is a senior gang member who has been in that gang since way back in the day and lived to tell the tale.

These kids act like they're O.G., but they're just punks, kids playing gangster.

by major_ October 20, 2008

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o.g.

The original or old school version of any animate or inanimate object.

I bought one of them 70's vans with the o.g. designs on the side.

by King Willy May 13, 2005

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o.g.

short nickname for "orgasm"

boy: Did you really o.g. last night when we had sex?

girl: Yes, it was the best o.g. of my life!

by chellie December 13, 2003

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1.An original gangster,who has used so many drugs.. I.e.(meth,heroin,crack,oxy,marijuana,alcohol)that such use..or abuse..has tainted his mind so much..that when he speaks..it's a mumble..2.Old burned out gangster, mumbling words under his breath, words that only make sense to him..and no sense to others around him..
.

Hey bro..You see that mumblin o.g. motherfucker talking to himself in the chair over there?..Yea !..That's my dad..He's perma spun!..I still love him though..

by anonymous February 9, 2018

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mumblin o.g.

1.An old man mumbling under his breath to himself offending other's without meaning to...2.An original gangster ..on perma spun..wasted from all the dope he's done..mumbling shit..in which other's perceive as against them..

Son to his momma..Check ✔ it' out!..You know that mumblin o.g. fuck over there!..See him?!..Know this!.. he really loves us!..

by anonymous May 5, 2018

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