be not worth the paper it's printed on
be not worth the paper it's printed on
To be useless, unimportant, or insignificant. Oh, that memo is not worth the paper it's printed on. You know the boss is going to completely change her mind about it in a few days anyway! Due to the recent hyperinflation, the nation's currency is now not worth the paper it's printed on.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.