Keep your mouth shut

Also found in: Acronyms.

keep (one's) mouth shut

To not discuss or mention something. He needs to keep his mouth shut and stop telling our family secrets to everyone in town! A: "It wasn't my fault. Brian said&mdash" B: "Keep your mouth shut, Chad!"
See also: keep, mouth, shut

Keep your mouth shut (about someone or something).

Fig. Do not tell anyone about someone or something. Bob: Are you going to see the doctor? Mary: Yes, but keep your mouth shut about it. Bob: Isn't Tom's uncle in tax trouble? Jane: Yes, but keep your mouth shut about him.
See also: keep, mouth, shut
References in periodicals archive ?
Keep your mouth shut in the future or make sure you remember what is going to be done in the Premier League.
Considering Simon Cowell is thinking about dumping you, mate, perhaps you should keep your mouth shut.
They haven't even qualified for Europe, so it really pays to keep your mouth shut when you are on top and let your team do the talking.