[einzigartig adidas]

Yes, it's Original Gangster, as in someone who's been around for a while and a day. And FC is partially right too, 'cause in certain parts of the US you can grab Old Gold brand cigarettes which are lovingly referred to as OG's since the branding almost literally implies the same status for a person or object.

And SK I'd apologize for threadjacking too but I bought some kicks so I figure that should entitle me to at least one jacking comment... no?