potayto, potahto

potayto, potahto

A negligible, trivial, or unimportant difference, distinction, or correction. (While "potahto" is not an accepted pronunciation in any English-speaking population, the phrase is an allusion to a verse in the song "Let's Call the Whole Thing Off": "You like potayto, I like potahto; you like tomayto, I like tomahto; potayto, potahto, tomayto, tomahto, let's call the whole thing off!") A: "Well, technically, the Hindenburg was a rigid airship, not a blimp." B: "Eh, potayto, potahto. What difference does it make?"
Farlex Dictionary of Idioms.

potato

n. the head. Put your hat on your potato, and let’s get out of here.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • potato
  • tomayto, tomahto
  • it's six of one and half a dozen of the other
  • It's six of one, half a dozen of another
  • six and two threes
  • make nothing of
  • get (one's) panties in a bunch
  • get (one's) panties in a knot
  • get (one's) panties in a twist
  • get (one's) shorts in a knot