blow your cool

blow (one's) cool

To lose control of one's composure, temper, or nerve. He really blew his cool when the waiter dropped his food. I really blew my cool during the interview.
See also: blow, cool

blow your cool

lose your composure; become angry or agitated. informal
See also: blow, cool
References in periodicals archive ?
It is never cool "to blow your cool." It has to do with concealing rather than revealing--so shades are usually cool.
Cars and Culture: The Hirohata Merc--So Cool
Don't blow your cool by blowing your mates out at the last minute for your new man.
Mirror Woman: RELATIONSHIPS - Let's be serious; After a handful of dates with your new man, you're wondering if it's just a bit of fun or something more serious. Here's how to tell when you are officially his girlfriend
If there was ever a perfect place to blow your cool, it's Blackpool.
Holiday: READY FOR ACTION
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