Definition
To be careful about what one says, especially with regard to disrespectful or profane language.
In the imperative form, used as a warning to choose one's words carefully or else be silent, for fear of consequences.
In Context
- "You really need to watch your mouth. You're a teacher now!"
- "Hey. Watch your mouth. Don't you realize who's listening?"
- "You watch your mouth, sis. I may be old, but I can still knock the stars out of the sky for you."