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
people often do irrational or foolish things when they are in love.
I and my boyfriend have decided to get married in the summer. I don't think that's wise, since we won't have enough money saved by then to set up house. But then, one cannot love and be wise.