lose one's temper

Idioms  

1. Also, lose it. Give way to violent anger, lose self-control. For example, When she found out what Ann had done, she lost her temper, or He arrived without that important check, and then I just lost it completely. The first term dates from the early 1800s; the second slangy locution dates from the mid-1900s.

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Example Sentences

It’s easy to lose one’s temper in this situation, so the counsellor has instructed the friends and family members to organize their thoughts on paper.

From The New Yorker • Jun. 12, 2017

A few minutes later, Stafford addressed the court, again thanking Eulian for his apology and saying she knows what it feels like to lose one's temper.

From Los Angeles Times • Jun. 30, 2015

She considers it bad manners to lose one's temper.

From Out To Win The Story of America in France by Dawson, Coningsby

There are things enough in New York to lose one's temper over at the best of times, and on this particular day they seemed to all happen at once, and some fresh ones.

From The Forerunner, Volume 1 (1909-1910) by Gilman, Charlotte Perkins

To be high strung and quick to lose one's temper may sound fine in romantic rubbish, but in real life it is folly, for much more can be accomplished by being calm.

From Maintaining Health Formerly Health and Efficiency by Alsaker, R. L.