It's just a saying when someone says such a correctly obvious thing.
Royal Guard: Fuck, we're surrouned by these creatures!
News Reporter Who Happened To Tag Along Somehow: No shit sherlock!
by Ball Nyegga the Slanderous Guy December 27, 2016
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A snide response to someone (usually a know it all) who has made a statement that is very obvious using a sarcastic reference to Sherlock Holmes the famous literary detective.
Bert: "You shouldn't have let Miss Piggy blow you, your schlong is all chewed up"
Ernie: "No Shit Sherlock"
by Spade Newsom January 14, 2011
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A way of saying " No Duh " or " Obviously " but in a mean kind of way or sarcastically
by SRS111222 January 26, 2012
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A one of the books in the Sherlock series, in witch Sherlock has constipation and has to swallow his pride and let watson use his medicine on him
friend "have you seen the new sherlock book"

me: yeah no shit Sherlock
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When some dumbass states the obvious as if he was intelligent.

Example: "A computer uses electricity to run", NO SHIT SHERLOCK!
by Flobie -- YouTuber January 11, 2018
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