OSG
original stoner group. The original group of people you started smoking with. Coined in the Bay Area, if you know it, your in.
Mark: Hey man want to hang out?
Jake: Can't, hanging with the OSG tonite...
Mark: Damn, wish I had one.
by JTKL January 08, 2013

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Top Definition
osg
A commonly used catchphrase by Southern California queens, especially Hillcrest betches meaning "Oh Shit Girl."

This abbreve (abbrebiation) has also made its way onto many t-shirts and is funniest when used with a very girly man or woman.
Did you see that fired-ass tranny walking across the street?

"OSG"
by ParisFired January 05, 2010

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The Urban Dictionary T-Shirt

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OSG
Old School Gamer (or Old Skool Gamer)
a Person who prefers old Games instead of new games
basically another word for retrogamer that was originated in a Dirty South Killa Song where he mentioned many Sega and Nes Games.
MAN1:"what are you playing"
MAN2:"super mario bros"
MAN1:"oh an OSG classic"
MAN2:"I am OSG so I love these kinds of games"
by JD West May 06, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt