dig (one's) heels in
To cling stubbornly to one's beliefs, position, or wishes. Please let me tell my side of the story before you dig your heels in on this, OK? I told Grace she can't go, and now she's dug her heels in as if this party is the most important thing in her life. Must you always dig your heels in when you don't get your way? Honestly, you are the most stubborn person I've ever met!
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.