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Michigan bankroll

noun Slang.
  1. a large roll of paper money in small denominations.
  2. a roll of counterfeit paper money or a roll of money-sized paper surrounded by one or more genuine bills.
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Origin of Michigan bankroll

First recorded in 1930–35
Also called Michigan roll.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018