o.g.
An OG is the first gangster who told all the new kids that they were weak and needed to be tough or they'd end up like the last guy who messed with him.
OG4: You think you're tough? I was tough before your mom had you.
OG5: I told you to get that job. Now you're out of the hood and I'm out of my mind.
OG6: I made it to the top. You're still trying to figure out the stairs.