mouth on
mouth on (one)
To share or reveal compromising information about one to a figure or body of authority. If you mouth on them to the cops, they'll definitely try to have you killed! Why are you always mouthing on me like that! You're such a tattletale!
See also: mouth, on
Farlex Dictionary of Idioms.
mouth on someone
to inform the authorities on someone; to tattle on someone. Max mouthed on his accomplice and got him arrested. You had better not mouth on me!
See also: mouth, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
- mouth on (one)
- inform on
- inform on (one)
- inform against (one)
- grasser
- breathe a word
- be (sitting) on (one's) tail
- eye in the sky
- eye-in-the-sky
- flasher