lose their head
Lose composure completely
To lose one's head is to panic or act irrationally under pressure, abandoning calm judgment: She completely lost her head when the fire alarm went off.
The phrase suggests emotional overwhelm displacing reason.
Less commonly, it can mean to become infatuated: He lost his head over the new secretary.
- keep calmRemain emotionally steady
- flailingUncontrolled limb movement
- flusteredNervously upset and confused
- fly off the handleLose temper suddenly
- panicUncontrollable sudden fear
freak out · irrationality · confusion · shouting · impulsivity · misjudgment · hysteria · embarrassment · overreaction · knee jerk reaction · beheading · rashness · disorientation · forgetfulness · recklessness · fleeing · frenzy · going crazy