lose your cool

US /luːz jʊər kuːl/
UK /luːz jʊər kuːl/
"lose your cool" picture
1.

perdere la calma, arrabbiarsi

to suddenly become angry or upset

:
He tends to lose his cool when things don't go his way.
Tende a perdere la calma quando le cose non vanno come vuole lui.
Even under pressure, she rarely loses her cool.
Anche sotto pressione, raramente perde la calma.