doodly-squat

doodly-squat

Nothing; anything at all (when used in negative statements). I have to admit that I know doodly-squat when it comes to computers. Unless you give me something in writing, that promise isn't worth doodly-squat.
Farlex Dictionary of Idioms.

doodly-squat

verb
See diddly-squat
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • diddly-squat
  • diddly
  • doodly
  • squat
  • take a squat
  • admit of
  • admit of (something)
  • pop a squat