English Dictionary

watch one's mouth

verb

(idiomatic, US) To be careful about what one says, especially with regard to disrespectful or profane language.

You should watch your mouth when talking to your boss.

意味（1）

(idiomatic, US) To be careful about what one says, especially with regard to disrespectful or profane language.

意味（2）

(idiomatic, chiefly US) In the imperative form, used as a warning to avoid or stop using inappropriate language, especially profanity, or disrespectful utterances.