lose (one's) cool(redirected from lost his cool)
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lose (one's) cool
To lose control of one's composure, temper, or nerve in a given situation. He really lost his cool when the waiter dropped his food. I really lost my cool during the interview.
lose one's cooland blow one's cool
to lose one's temper; to lose one's nerve. Wow, he really lost his cool! What a tantrum! Whatever you do, don't blow your cool.
lose one's cool
see under keep one's cool.
lose your cool
COMMON If you lose your cool, you suddenly get angry and behave in a bad-tempered or uncontrolled way. At this point, I lost my cool and shouted `for goodness sake, stop!' `Why don't you sit down and have a drink?' — `I don't want a drink,' Anne replied, losing her cool.
lose your coollose control of your temper or emotions. informal
keep/lose your ˈcool(informal) stay calm/get angry, excited, etc: He was very insulting. I really don’t know how I managed to keep my cool.
lose one’s cool
tv. to lose control; to lose one’s temper. (Compare this with keep one’s cool.) Now, don’t lose your cool. Relax.