lose (one's) head over (something)(redirected from losing their head over)
lose (one's) head over (something)
To lose one's composure and act emotionally or irrationally because of something. You need to calm down before you talk to Larry. You don't want to lose your head over this when it might just be a big misunderstanding. I'm sorry, I lost my head over this whole thing. There's no excuse for what I said.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.