people who were once poor and become wealthy might then become lazy and indolent and spend all day in champagne-filled jacuzzis whereas other newly-successful people might continue to work hard, thus "staying on the grind"
excerpt from "God gave me style":
A O.G. told me God's favorites have a hard time
You out the hood, that's good now stay on the grind
Chorus from "Bitch get in my car":
I got no pickup lines
I stay on the grind
I tell the hoes all the time
Bitch get in my car (Bitch get in)
I got my 64, ridin' on Dayton spokes
And when I open that do'
Bitch get in my car
1) A player player who puts in his poker hours in a job-like way
2) Grind it Out, on the grind: working particularly hard, like when experiencing
an unlucky run of cards, to make an acceptable return on your time invested;
or when making a solid return when playing from a small bankroll at lower limits
"He Quit his job to become a grinder , he just won the world poker tour"
"what do you do for a living?"
"I'm on the grind"
"Today I'm grinding it out at the poker room."
(b)"Yeah, just got home."
(a)"You on the grind?"
(b)"You know it, been murkin scrubs."
(a)*cough cough cough*-"Damn that shit is fire"
(b)"Time to get on the grind"
(a)"No doubt. The sticks are calling"