Idiom meaning, usage examples, facts

1. That coupon is expired, so the grocery store won’t accept it. It’s not worth a red cent
2. A telephone directory from thirty years ago isn’t going to help you find what you need. It’s not worth a red cent.

Synonyms: not worth a dime; not worth a plugged nickel; not worth a hill of beans; not worth the paper it’s printed on. This expression is always used in the negative.