Definition of funny money noun from the Oxford Advanced American Dictionary

     

    funny money

     noun
    noun
     
    [uncountable](informal)(disapproving)
     
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  1. 1 a currency (= the money used in one country) that is not worth much and whose value can change quickly
  2. 2 money that has been forged (= is not real), or stolen, or that has come from illegal activities
See the Oxford Advanced Learner's Dictionary entry: funny money