Green’s Dictionary of Slang

(US teen) money.

1982–2004		G. Sculatti Catalog of Cool 🌐 lean green (noun): Loot, dough, scratch. Money.
1998		W.H. Gross Bill Gross on Investing 156: Most money managers would opt for the lean green, most politicians for power.
c.2003		J. Allen Hydrocephalia 🌐 I’m printing up five-dollar bills in the basement and I see Big-Head stick his big head into the room and says, [...] ‘Bro, I’m about to hit the town with some stone-cold foxes. You think you could print up a little batch for me?’ And I say something like, ‘These fine ladies like the lean green?’.