Green’s Dictionary of Slang

short-money game n.

[short money n.]

(US Und.) the money that a pimp can make from a prostitute who works for him for only a short period.

Milner & Milner Black Player 298: When it is known in advance that a ho is not a good long-term prospect for the table, the pimp attempts to get as much money out of her as possible before she leaves (blows). This is known as a short-money game.