put my foot down

to tell someone in a strong way that they must do something or that they must stop doing something. You can't just let him do what he wants, you'll have to put your foot down.

When Anna came home drunk one afternoon I decided it was time to put my foot down.

by tsvijay May 17, 2006

put one's foot down

Take a firm stand. This idiom alludes to setting down one's foot firmly, representing a firm position. Late 1800s

put one's foot down
She put her foot down and said we could not go to the carnival

by Yousra Shahy December 9, 2008