Mr. Cool

American  

noun

Informal.

1. a person who is ideally or excessively self-possessed, poised, or reserved (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).

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Example Sentences

She was able to balance the demands of a young family and a new firm, she said, because Mr. Cool stepped into the role of primary parent.

From New York Times • Jul. 16, 2022

Arians, with his trademark kangol hat and Mr. Cool persona, is far from your typical, buttoned-down, say-nothing NFL head coach.

From Washington Times • Jan. 27, 2021

Gerlach held a potluck dinner at the Miner’s Club to celebrate Mr. Cool.

From Los Angeles Times • Sep. 24, 2019

Mr. Cool, who lived in Oakton, Va., was born in Massillon, Ohio.

From Washington Post • Jun. 16, 2017

‘Yeah, I’m fine,” I said nonchalantly, as if I was Mr. Cool, because I didn’t want Blanca to feel bad for me.

From "Bodega Dreams" by Ernesto Quinonez