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
Wynona	wi-NON-ə	English
Wade	[weid]
Neasa	NYAS-a, NAS-a	Irish, Irish Mythology
Kimbrough	['kimbrə]
Tomislava	-	Croatian, Serbian, Medieval Slavic
Kahurangi	-	Maori