Put one's foot down

Meaning:

This idiom is used to describe when someone takes a firm stand. They are determined to have things happen their way. This idiom is often used to describe when someone prevents something from happening. Usually the person who puts his or her foot down is in a position of authority.

Example sentences:

1. I'm putting my foot down.
2. She put her foot down.
3. Now is the time to put your foot down.

Example dialogue:

Two office workers are talking.

A: Why don't we listen to music in the office anymore?
B: Because the boss said that it was distracting us from our work.
A: Oh, really? When did that happen?
B: He put his foot down last week.

Practice:

Think of a situation where you can use "put your foot down".