lose one's cool (Meaning)

lose one's cool

to become angry

Emily couldn't help but lose her cool when the internet connection crashed in the middle of an important video call.
When the referee made an unfair call, the coach lost his cool and verbally harassed him.
The unexpected downpour made the driver lose his cool and swerve dangerously.
The stress of the upcoming exams was causing Sarah to lose her cool more frequently than usual.
After being constantly interrupted, the speaker finally lost his cool and exclaimed, "Enough!"
The dog's Persistent barking made the owner lose his cool and accidentally shove the animal.
The intense heat and humidity caused the worker to lose his cool and collapse on the job site.
When her opponent made a rude remark, the tennis player lost her cool and threw her racket at him.
The traffic jam made the commuters lose their cool and honk their horns relentlessly.
Losing his lottery ticket caused the man to lose his cool and go on a destructive rampage.

to become angry

snap, hit the ceiling, forget oneself, blow one's top, flare (up), hit the roof, lose one's temper, glare, have a fit,anger

cool (off or down),calm (down), simmer down, relax, chill out,quiet (down),hush

Emily couldn't help but lose her cool when the internet connection crashed in the middle of an important video call.

When the referee made an unfair call, the coach lost his cool and verbally harassed him.

The unexpected downpour made the driver lose his cool and swerve dangerously.

The stress of the upcoming exams was causing Sarah to lose her cool more frequently than usual.