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Mr. Cool

noun, Informal.
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). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Contemporary definitions for Mr. Cool

a male considered to have great self-confidence, poise, and style


She scanned the bar, looking for Mr. Cool.

Usage Note

can be used with any term of address, as Ms.'s 21st Century Lexicon
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