NS

NS

rude slang An initialism of "no shit," meaning "that is or was completely obvious or self-evident." Only used in informal written communication. A: "I think we need to clear that blockage out of the drain." B: "Yeah, NS. I'll do it when I get home." A: "I mean, did you know that our taxes are used to fund airstrikes in foreign countries?" B: "NS—the military is funded with tax revenue. This is not new information."

NSS

rude slang An initialism of "no shit, Sherlock," meaning "That is or was completely obvious or self-evident." The ironical reference to the famous fictional detective Sherlock Holmes is meant to emphasize that the thing mentioned did not require any great intelligence or deduction to determine or know. Only used in informal written communication. A: "I think we need to clear that blockage out of the drain." B: "Yeah, no shit, Sherlock. Thanks for the tip." A: "I mean, did you know that our taxes are used to fund airstrikes in foreign countries?" B: "NSS—the military is funded with tax revenue. This is not new information."
See also: NS
Farlex Dictionary of Idioms.

No shit, Sherlock!

and NSS
exclam. & comp. abb. a phrase said when someone has stated the obvious. (see also Sherlock.) No shit, Sherlock. Everybody knows that!
See also: no

NSS

verb
See No shit, Sherlock!
See also: NS
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • FISHDO
  • FTS
  • WTG
  • HBU
  • YKWIM
  • CBA
  • DYOR
  • CTFO
  • ICTYBTIHTKY
  • DNU