lose one's cool

/lˈuːz wˈɒnz kˈuːl/

/lˈuːz wˈʌnz kˈuːl/

[phrase]

to lose one's cool

[PHRASE]

to become suddenly very angry, often to the point of shouting or behaving in an aggressive manner

to [lose] {one's} cool definition and meaning

What is the origin of the idiom "lose one's cool" and when to use it?

The origin of the idiom "lose one's cool" can be traced to American English slang from the mid-20th century. The term "cool" in this context refers to maintaining a calm, composed, and unruffled demeanor. It can be employed in personal relationships during arguments or conflicts when individuals become overwhelmed by their emotions and react impulsively. In professional settings, it may be used to describe moments of high stress or pressure, such as during presentations, meetings, or negotiations, when someone becomes visibly flustered or unable to maintain a calm demeanor.

Examples

1. He completely lost his cool and started yelling.

2. He finally lost his cool with a photographer and threatened to hit him.

3. Not lose my cool.

4. He did not lose his cool and returned fire, hitting the sniper between the eyes.

Nearby words

lose head

loss of face

right side of the tracks