脑子一热

脑子一热

Literally means:

with an overheated brain

Actually means:

be impulsive

It figuratively means a quick temper and loss of calmness. Also known as 脑袋热. It is usually used to describe someone who is hasty and reckless in action or who does something that comes to his or her mind, heedless of the possible consequences. Derrogatory.

比喻做事冲动，不冷静。也可说“脑袋热”。多用来指做事不考虑后果，或一时冲动，想到什么就做什么，不管结果如何。具有贬义色彩。