wicked tongue
Noun
Meaning
wicked tongue (plural wicked tongues)
(idiomatic) An abusive, vulgar, nasty, or otherwise objectionable manner of speaking.
Synonyms
Examples
The thing that made Groucho special was the way he used his body parts. He also had a wicked tongue. People didn't realize it, but when Groucho said something, he meant it.
What are you doing?" she asked, trying to raise herself. "First, I thought I'd show you what a pity it would be if they cut off my wicked tongue.