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The act of noticing a few simple clues (usually about a person's appearance) and then quickly reaching an impressive logical conclusion (usually about their profession or background). Named after the fictional detective Sherlock Holmes, who did this a lot (mostly to show off).
Sam: Hey, that old guy over there probably used to be in the Navy.
Will: How do you know that?
Sam: He's tan, has an whale tattoo on his arm, walks like he's been in a disciplined setting for a long time, and I see an anchor design on his jacket.
Will: Wow, nice sherlock scan dude!
by sapodilla May 24, 2017
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