funny money

noun
1
a currency (= the money used in one country) that is not worth much and whose value can change quickly
پول بی‌ارزش, ارز ناپایدار, واحد پول نامعتبر
2
money that has been illegally printed, stolen or has come from illegal activities; money that is not real because it has been created for a game
پول تقلبی, پول دزدی, پول جعلی, پول غیرقانونی
Police seized more than 5 million dollars' worth of funny money.
playing poker with funny money