What is "grifted"

Usage examples of "grifted".

In another five years, his grifted loot would total enough for retirement, and he could drop caution with the grift which impelled it.

One was to Mickey, handing him a convoluted epic on how a bettor skimmed an unnamed runner who was screwing the bettor’s sister and couldn’t turn him in, but finally made him cough up the six grand he’d welched--the exact amount Audrey had grifted off the Mick.