He had blown his cool and yelled at his boss.

She is keeping her cool despite the stressful situation.

She is blowing her cool after receiving the bad news.

He kept a cool head during the crisis.

He blew his cool when he found out he failed the exam.

She is keeping a cool head during the crisis.

I cooled my heels while waiting for the bus.

She was cooling her heels in the waiting room.

The cool-o-meters in the room were all broken.

I had to cool my jets and wait for the right moment to speak up.