Definition of sharp tongue in English English dictionary
The practice or characteristic of speaking to others in a harsh, critical, or insulting manner
He hated the Professor, who smelt the rogue in him, and scourged him continually with his sharp tongue.
disapproval If you say that someone has a sharp tongue, you are critical of the fact that they say things which are unkind though often clever. Despite her sharp tongue, she inspires loyalty from her friends