lose (one's) head(redirected from lost their head)
lose (one's) head
To lose one's composure and act emotionally or irrationally. You need to calm down before you talk to Larry. You don't want to lose your head before finding out his side of the story. I'm sorry, I lost my head out there. There's no excuse for what I said.
lose one's head (over someone or something)
Fig. to become confused or overly emotional about someone or something. Don't lose your head over John. He isn't worth it. I'm sorry. I got upset and lost my head.
lose one's head
see under keep one's head, def. 1.
lose your head
COMMON If you lose your head, you panic and do not remain calm in a difficult situation. He warned the party not to lose its head, saying that it was not a `time for panic'. When he was questioned by the police, he completely lost his head, told a number of lies and forgot to mention one or two things that might have helped him. Compare with keep your head.