Cách sử dụng
"Run off at the mouth" is an expression used to describe someone who talks too much and doesn't stop, especially when they shouldn't. It's like when someone talks about things they don't know much about or reveals too much personal information. It's not a good thing to do because it can make people feel uncomfortable or annoyed. So, the expression is used to tell someone to be more careful about what they say and how much they say it.