watch (one's) mouth

(redirected from watch their mouth)

watch (one's) mouth

To be very mindful or cautious about what one says; to control what one says in order to avoid offensive language. Watch your mouth! I don't care how you speak at home, that's not how we talk here. After being threatened with detention for my snide remarks in class, I knew I had to watch my mouth for the rest of the semester.
See also: mouth, watch

watch your ˈmouth/ˈtongue

be careful what you say in order not to offend somebody or make them angry: Now, you just watch your mouth around your grandparents, Billy! OPPOSITE: shoot your mouth off (about something)
See also: mouth, tongue, watch
References in periodicals archive ?
In relevant remarks on Tuesday, Iran's Supreme Leader Ayatollah Seyed Ali Khamenei warned the US presidential candidates to watch their mouth when speaking of the Vienna nuclear deal, stressing that Tehran will also ditch the agreement if future White House leaders show disrespect and discard it.
There they are, telling you a complicated and emotional tale of something vital in their life and your mind is going la-la-la, thinking about shoes or the situation in the West Bank, and you watch their mouth moving and Blah coming right out atcha.
All of us have to watch our mouths sometimes, but politicians either have to watch their mouths all of the time or develop thick hides.
WALKING WITH DINOSAURS Sky Movies Family 3PM Sit your tiniest ones down in front of this simple tale of an underdog triumphing against all odds, and watch their mouths drop open.
And as for Chelsea's top drawer players, well they'd better watch their mouths as well.