keep one's mouth shut

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Related to keep one's mouth shut: Shut Mouth
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.keep one's mouth shut - refrain from divulging sensitive information; keep quiet about confidential information; "Don't tell him any secrets--he cannot keep his mouth shut!"
References in periodicals archive ?
It often needs an open mind to keep one's mouth shut.
But there are times when one should keep one's mouth shut.
BUT if a failure to keep one's mouth shut for the better means the sack, how does the Prime Minister explain Tony Banks' continued presence in his Government.