you can't get blood out of a turnip

you can't get blood out of a turnip

It's pointless trying to achieve something that is already impossible. Good luck getting a group of toddlers to sit still—you can't get blood out of a turnip, you know. A: "Why don't you ask your dad for the money?" B: "Because you can't get blood out of a turnip."
See also: blood, get, of, out, turnip
Farlex Dictionary of Idioms.
See also:
  • like getting blood from a stone
  • like getting blood out of a stone
  • like getting blood out of/from a stone
  • blood out of a stone
  • like getting blood from a turnip
  • like getting blood out of a turnip
  • wring water from a stone
  • wring water out of a stone
  • get blood from a stone
  • get blood out of a stone