that's a tall order

that's a tall order

That task, request, or order is particularly difficult to complete or accomplish. A: "The boss wants us to compile 300 pages of data today." B: "Boy, that's a tall order." I need another 200 cupcakes by the morning. I know that's a tall order, but is there any chance you could help me out?
See also: order, tall
Farlex Dictionary of Idioms.
See also:
  • it's a tall order
  • a tall order
  • tall order
  • be a tall order
  • group
  • a committee is a group of men who keep minutes and waste hours
  • rise to the challenge
  • rise to the occasion/challenge
  • stick at nothing