bad mouth

bad-mouth

1. verb To speak negatively or unflatteringly about someone or something. Why are you always bad-mouthing Tiffany? You don't even know her that well!
2. noun One who says negative or unflattering things about someone or something. He's a real bad-mouth, so don't listen to anything he says about me!

bad mouth

Disparage or criticize unduly, malign, as in Why do you constantly bad mouth your colleagues? This term is believed to be of African origin, where the phrase bad mouth signifies a curse or evil spell. [1930s]
See also: bad, mouth
References in periodicals archive ?
PAULA RADCLIFFE insists she did not bad mouth her friend Mo Farah and claims she has been misquoted.
How the article is worded seems mean spirited and a bit hateful to jump the gun or in this case to jump the string to tell readers to bad mouth a bow manufacturers string without first giving them an opportunity to make it right or addressing it in a more direct manner.
No matter how tempting, never bad mouth anybody in front of a client.
There would be times he would bad mouth the other nation's folk but he would always say that, in times of bad, you could rely on the others of those nations to watch your back.
Not to bad mouth General Services, but they just couldn't afford to do some of the repairs,'' Paniccia said.
I know I have a bit of a bad mouth," Contactmusic quoted Pete, as saying.
A BEFORE you bad mouth the girl's chum, I hope you've taken a long, hard look at yourself in the mirror.
But I don't feel I need to bad mouth them or make a fuss.
But fellow pro Gary Evans is insisting Monty should be punished further and continues to bad mouth him around the circuit.
But the advice to you is no different to that which I would give an under age girl - don't, even if they are going to bad mouth you, give in.
Canon Barry Dodds of St Michael's Church of Ireland church said: "Bobby was the sort of man who would not let one person bad mouth another or let anyone bad mouth another's organisation.