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

“We had five good — if rocky — years together, until we sort of got one another’s rhythm, because he was Mr. Cool, he was Mr. Authoritative and straight ahead,” she said.

From New York Times • Feb. 12, 2024

That’s a telling criticism from Obama, who could be Mr. Cool to a fault.

From Washington Post • Nov. 27, 2019

Most days, they were on the radio waves as the town woke up: Flash and Mr. Cool, Gerlach’s morning duo for traffic, weather and, well, whatever else they wanted to talk about.

From Los Angeles Times • Sep. 24, 2019

He is just Mr. Cool, and we don’t get it.

From Washington Times • Nov. 15, 2016

‘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