Tighten the screw(s) (on one) informal verb phrase
To use force or threats to get someone to do what you want.
The landlord is tightening the screws on Min to get out of the house.
The electricity company is really tightening the screws. They threatened that if we didn't pay our electricity bill within a week, they would cut off the electricity.
Peter said he would tighten the screws on Jack if he didn't confess.
To threaten that you will punish someone severely because of what they have done
To compel someone to do something
I'm not stupid or easily scared.
1. Force someone to swallow something
2. Force or try to make someone accept, endure, or agree with something unpleasant
Relieve the pressure that someone is coping with
The verb "tighten" should be conjugated according to its tense.