A wicked tongue noun phrase
The tendency to speak in an abusive, vulgar or nasty manner
She has such a wicked tongue that her husband can not bear her.
Rosa has a wicked tongue, so people don't want to talk with her.
To talk the main part at once, or avoid talking about what is not important
To say something without thinking
To tell someone the truth about something that they had not understood or received false information
I have to set my wife straight about what happened yesterday.