I need money, I used to be a stick-up kid
So I think of all the devious things I did
I used to roll up, this is a hold up, ain’t nothing funny
Stop smiling, be still, don’t nothing move but the money

from Rakim – Paid in Full Lyrics on Rap Genius

Meaning

Explains how he used to pull heists and command the hostages to not move an inch; only the money is leaving.

The second of the two lines is a double entendre: Rakim is referring to the fact that he has zero chance for social mobility in this situation. While the money will ‘move’ (change hands), and he will become nominally richer, he will not acquire any of the social benefits of having it because it has been acquired illegitimately.

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