written checks one couldn't cash

Verb

write checks one can't cash (third-person singular simple present writes checks one can't cash, present participle writing checks one can't cash, simple past wrote checks one couldn't cash, past participle written checks one couldn't cash)

1. (idiomatic, informal) To make promises one cannot keep, or to make boasts that are not true.
   • You're acting like a frat boy, which is fun and all, but you're writing checks you can't cash.2020, Michel Prince, Fourth and Goal