KEEP ONE'S MOUTH SHUT

I. (verb)

Meaning:

Refrain from divulging sensitive information; keep quiet about confidential information

Example:

Don't tell him any secrets--he cannot keep his mouth shut!

Synonyms:

keep one's mouth shut; keep quiet; shut one's mouth

Classified under:

Verbs of telling, asking, ordering, singing

Sentence frame:

Somebody ----s