He has completely lost the plot lately.
lose the plot
idiomTo cease to behave in a consistent or rational manner.
After working for twenty hours straight, the manager started shouting at everyone and clearly lost the plot.
The once respected politician seemed to lose the plot entirely, delivering incoherent speeches that alienated his most loyal supporters.
- 01
be someone's to lose
To be anticipated to be won by someone.
- 02
for the plot
Everything happens for a reason.
- 03
lose face
To lose the respect of others; to be humiliated or experience public disgrace.
- 04
lose ground
To suffer loss or disadvantage; to experience a setback.
- 05
lose it
To lose control of a situation.
- 06
lose one's battle
To succumb to a serious illness.
- 07
lose one's bottle
To lose courage and determination.
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lose one's cool
To become upset or disconcerted; to lose one's temper.