No Shit Sherlock!! Share definition Flag It's like the person said something that was pointing out the obvious....kinda like "no duhh!" person one: The sky is blue!! Person two: No Shit Sherlock!! No Shit Sherlock!! by Bob Marley LOver!! lol jk jnm November 22, 2010 0 0 Get merch Get the No Shit Sherlock!! mug. Buy Now — $32.95 See more merch