I ain't spend one rap dollar in 3 years, holla!
from Clipse – Keys Open Doors Lyrics on Rap Genius
Meaning
He spends his ample drug money and saves his rap money. Also, during the two year gap in rapping, they did not tour nor make records during that time. Hence, they did not get a single dollar out of rap and actually could not spend “rap money.”

As Dickens says: “Annual income twenty pounds, annual expenditure nineteen six, result happiness. Annual income twenty pounds, annual expenditure twenty pound ought and six, result misery”
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