Wiktionary
bankroller
n. agent noun of bankroll; one who bankrolls.
Usage examples of "bankroller".
He didn't like the job with an amateur doing the fingering and five guys cutting up a fifty-thousand-dollar pie after the finger's ten per cent and the bankroller's two-for-one were already taken out, and with the job already requiring two tractor-trailers and a car.
He was figuring on splitting half, plus the bankroller's cut, and that made it a boodle worth going after.
Peppy didn't have anything like that kind of money, and considering he's been off the load for two months, is no longer in production, and rated a weak seventeenth in the AAS last time the show was offered, there were no banks or bankrollers willing to take a flyer on his future prospects.