Lose the plot Meaning in English
expression
Definition
To become confused, act irrationally, or lose control, often due to stress or frustration. It can also mean to start behaving in a crazy or illogical way.
Usage & Nuances
This is an informal British-English idiom, often used humorously or to describe someone acting strangely under stress. Not literal—does not mean someone forgot a story, but rather lost control or became irrational. Common with 'completely' or 'totally': 'He’s completely lost the plot.'
Example Sentences
I think he's starting to lose the plot after working all night.
basic
She really lost the plot during the meeting and started yelling at everyone.
basic
If you don't rest, you'll lose the plot soon.
basic
Wow, did you see him just now? He completely lost the plot!
natural
Don't mind her—she's just lost the plot because of the pressure at work.
natural
After hearing the bad news, he seemed to lose the plot and wandered off.
natural