have a loose tongue(redirected from has a loose tongue)
have a loose tongue
To speak too frequently and/or without discretion, especially as when unintentionally revealing private or sensitive information to others. You have a very loose tongue. You'd do well to learn to keep your mouth shut! The details of this project are extremely confidential, so make sure you don't have a loose tongue about it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have a loose ˈtonguetalk too much, especially about things that are private: Be careful what you tell Sam — she’s got a very loose tongue, you know.
Farlex Partner Idioms Dictionary © Farlex 2017