gbag

a bag of money that accumulates to a grand.
This can be used to show the boys how much the bags were that you brought in.

Boys I got the gbags tonight.
Eh get us some gbags Jack you fat shit

g-bag

A bag that contains thousands of dollars. Or used in a way to show how you got the bag

I just cashed in and got a g-bag
let's gooo got us some g-bags for the stack