grind (one's) teeth
grind (one's) teeth
To internalize one's anger without expressing it externally. The image is that of a person literally grinding their teeth together out of anger. Don't just sit there, grinding your teeth—if you're mad at me, let's talk about it.
See also: grind, teeth
Farlex Dictionary of Idioms.
grind your teeth
If someone grinds their teeth, they are angry about something, but do not express their anger. We journalists, who once were just like him, grind our teeth as we contemplate his success. Note: You can also talk about grinding of teeth, teeth-grinding, and tooth-grinding. There has been much grinding of teeth about what is seen by the government as the harshness of the European Community's decisions. When you are a little boy of nine, your father can seem like a hero one minute, only to cause you tooth-grinding embarrassment the next.
See also: grind, teeth
Collins COBUILD Idioms Dictionary, 3rd ed.
- grind your teeth
- express (one's) anger
- express anger
- cage of anger
- the cage of anger
- jump up and down
- bristle with anger
- shake (one's) fist at (someone or something)
- shake your fist
- vent