blow (one's) cool

To lose control of one's composure, temper, or nerve in a given situation. He really blew his cool when the waiter dropped his food. I really blew my cool during the interview.

Common Names:

Name	Pronounced	Usage
Grove	[grəuv]
Slava	-	Russian, Slovene, Croatian
Vaughn	VAWN	Welsh, English
Di	DIE	English
NadİYe	-	Turkish
Gualtiero	-	Italian