You cannot get a quart into a pint pot

you can't get a quart into a pint pot

proverb It is useless trying to fit something into a container or area that is simply too small to contain it. (A quart is a larger amount than a pint, so getting a quart into a pint pot is physically impossible.) A: "I'm sure I can make it all fit! Just sit on my suitcase while I try zipping it up again." B: "Oh, give it a rest already. You can't get a quart into a pint pot." A: "She thinks she's going to fit into that dress for her wedding, but you can't get a quart into a pint pot." B: "Oh, Martha, what a mean thing to say!"
See also: get, pint, pot, quart
Farlex Dictionary of Idioms.

You cannot get a quart into a pint pot.

Prov. You cannot fit too much of something into a space that is too small. That dog is simply too big to get into this kennel. You can't get a quart into a pint pot. Our refrigerator isn't big enough to fit that watermelon in. You can't get a quart into a pint pot.
See also: cannot, get, pint, pot, quart
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • you can't get a quart into a pint pot
  • fit on
  • fit on (something)
  • fit out
  • fit in with (someone or something)
  • serve the purpose
  • feel fit
  • serve a purpose
  • give (someone) a fit
  • give someone a fit