or 'flash'; -money, currency, tender, big-uns, etc!
flash paper is a type of paper used in the laboratory that goes 'up in smoke' very quickly, upon encountering certain chemicals or reactions. -very direct parallel to the fate of ones' money!
i was going to 'get funky' tonight, but now i ain' got no flash paper!!
the club bouncer quickly pocketed john's flash, and promptly let him in.
ace was fighting to come up with more flash paper!