Also, Sher·lock.

after Sherlock Holmes, fictitious detective created by Arthur Conan Doyle Unabridged


a male given name: from an Old English word meaning “fair-haired.” Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To Sherlock's 21st Century Lexicon
Main Entry:  sherlock
Part of Speech:  n
Definition:  a clever and perceptive person
Example:  That teenager is quite the sherlock.
Usage:  slang's 21st Century Lexicon
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Word Origin & History

masc. proper name, lit. "fair-haired," from O.E. scir "bright" + locc "lock of hair." Slang for "private detective, perceptive person" (the latter often ironic) is attested from 1903, from A.C. Doyle's fictional character Sherlock Holmes.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang Dictionary

Sherlock definition

  1. n.
    a term of address for someone who is clever or perceptive. (Often sarcastic. Based on the name of fictional detective. See also No shit, Sherlock!) : Brilliant deduction, Sherlock. I never would have guessed!
  2. n.
    one's pal or buddy. (A play on holmesor Sherlock Holmes.) : Come on, Sherlock, let's go!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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Example sentences
Sherlock rarely lets go of his, but has been known to fire a gun at the walls out of sheer boredom.
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