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
Gu&Eth;RÍ&Eth;R	-	Ancient Scandinavian
Olufunke	-	Western African, Yoruba
Sigvard	-	Swedish
Dror	-	Hebrew
Arachne	ə-RAK-nee (English)	Greek Mythology
Jabr	-	Arabic