Michigan bankroll

plural Michigan bankrolls

1. slangOne or several high-denomination banknotes wrapped around a larger number of smaller ones, intended to look like more money than it actually is.

   She showed them some loose twenties (the rest of the roll of money actually consists of a “Michigan bankroll” of phony money), and the three women discussed the situation for a while.

   2009, Frank E. Hagan, Crime Types and Criminals, page 173

   1 more example

   […] maybe two or three twenties, a dozen tens, and twenty or thirty fins. The rest is all aces and silver. A grand will make a bulge so big you can't get it in your pocket." "That's okay. I've carried Michigan bankrolls before."

   1990, David F. Friedman, Don DeNevi, A Youth in Babylon: Confessions of a Trash-film King, page 136

   Synonyms: California bankroll, Texas bankroll, Texas roll