put one’s foot down

šlápnout na to

I'll tell him about that later. I should have just put my foot down and knocked him over.

I wasn't getting any respect, any money; I couldn't even get hold of Richard when I wanted to, so I decided to put my foot down and straighten things out

But I put my foot down. I wanted to act. It was my choice and nothing was going to get in my way. (BNC-B)

» THE HUMAN BODY