not know shit from apple butter

not know shit from apple butter

rude slang To be exceptionally naïve, unworldly, ignorant, or undiscerning. Why did you send a kid to be my partner on this case? He doesn't know shit from apple butter. You wouldn't know shit from apple butter, so what do you think you're gonna teach me about fixing a car?
See also: apple, butter, know, not, shit
Farlex Dictionary of Idioms.
See also:
  • Shinola