be a license to print money
US /bi ə ˈlaɪ.səns tu prɪnt ˈmʌn.i/
UK /bi ə ˈlaɪ.səns tu prɪnt ˈmʌn.i/
1.
to be a very easy and profitable way of making money
:
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Opening a coffee shop in that prime location would be a license to print money.
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His new business venture seems to be a license to print money, with profits soaring every month.