put through the millput (someone) through the mill
to ask someone a lot of difficult questions in order to test them.
They really put me through the mill in my interview.
(redirected from put through the mill)
put (one) through the mill
To abuse one or treat them very harshly; to make someone suffer intense anguish, stress, or grief. People in my high school put me through the mill as a kid. I couldn't get out of there fast enough.The coach was renowned for putting his players through the mill in order to make them the toughest in the state.