not know shit (about something)

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not know shit (about something)

rude slang To be completely clueless (about something); to know or understand nothing (about something). You don't know shit about how hard I work, so don't sit there and condescend to me about work ethic! It's becoming increasingly clear that our new governor doesn't know shit.
See also: know, not, shit
Farlex Dictionary of Idioms.
See also:
  • doesn't know beans
  • (I) can't say as I do(, can't say as I don't)
  • all in (one's) head
  • don't bet on it
  • don't give up the ship
  • don't cry before you are hurt
  • don
  • don't ask me
  • don't ask me!
  • don't give me that story