Watch their mouths - Idioms by The Free Dictionary
watch (one's) mouth (redirected from watch their mouths)
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.
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)
References in periodicals archive
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
And as for Chelsea's top drawer players, well they'd better watch their mouths