🗓️ Idiom: Lose Your Cool (v)
💬 Meaning
- To suddenly become angry or upset.
- To stop being calm and react emotionally.
🧠 Example Sentences
- The team leader lost his cool when he saw the repeated mistakes in the report.
- A customer lost her cool after waiting on hold for twenty minutes.
- He tries to stay professional, but he sometimes loses his cool during tense meetings.
🏛️ Origin
The phrase comes from the idea of “cool” meaning calm or in control. When someone “loses their cool,” they lose that calm state and show anger or frustration. The expression has been used in English since the early 1900s to describe emotional outbursts in both personal and professional situations.
📝 Practice Exercises
1. Fill in the blank:
During the customer complaint call, the trainee almost __________ when the caller raised his voice.
Answer
lost his cool
2. Multiple choice:
What does “lose your cool” mean?
A. To speak very quietly
B. To remain perfectly calm
C. To become angry or upset
Answer
C To become angry or upset
3. Change the sentence using “lose your cool”:
“She stopped being calm when the office Wi-Fi went down again.”
Answer
She lost her cool when the office Wi-Fi went down again.
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