watch your mouth
US /wɑtʃ jʊər maʊθ/
UK /wɑtʃ jʊər maʊθ/
1.
言葉に気をつけろ, 口を慎め
a warning to someone to stop using offensive or inappropriate language
:
•
Hey, watch your mouth! There are children present.
おい、言葉に気をつけろ！子供たちがいるぞ。
•
If you don't watch your mouth, you'll get into trouble.
言葉に気をつけないと、トラブルになるぞ。