trash mouth

trash mouth

1. The use, or tendency to use, obscene, vulgar, or profane language. Sometimes hyphenated. You might think that sort of trash-mouth is acceptable when you're with your friends, but you can stow it while you're under our roof, got it? My dad used to swear a blue streak all the time when I was a kid, so I developed a bit of a trash mouth as a result.
2. A person who uses such obscene, vulgar, or profane language. Sometimes hyphenated. He's actually a very intelligent guy, but he's such a trash mouth that he's hard to take seriously. We can't have a trash-mouth like that running our presentations.
3. The use, or tendency to use, disparaging, insulting, or abusive language. Sometimes hyphenated. The boxer is renowned for having quite a trash-mouth whenever he's face-to-face with his opponents before a match.
4. A person who uses such disparaging, insulting, or abusive language. Sometimes hyphenated. These politicians always turn into such trash mouths during their election campaigns.
See also: mouth, trash
Farlex Dictionary of Idioms.

trash mouth

n. someone who uses obscene language. Some “trash mouth” is making everybody mad over in the park.
See also: mouth, trash
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • in demand
  • bleeding edge
  • hit and miss
  • hit or miss
  • hit-and-miss
  • accidentally
  • accidentally on purpose
  • accidentally-on-purpose
  • flat chat
  • flat strap
References in periodicals archive
Well, Jimmy Lee opened up his trash mouth one day and said the wrong thing, said I looked enough like the Wylers to be one of 'em and didn't my daddy do business with old man Wyler?
It centered on a group of insufferably cute yet trash mouthed youngsters who witness the ultimate yuletide showdown between Santa Claus and Jesus Christ over the true meaning of Christmas.