be out on a limb

be out on a limb

To have done or said something that lacks evidence or support. Her hypothesis is really out on a limb—the facts don't support it at all. That politician is out on a limb after publicly questioning the views of his party.
See also: limb, on, out
Farlex Dictionary of Idioms.
See also:
  • go out on a limb
  • (out) on a limb
  • limb
  • on a limb
  • out on a limb
  • mate
  • helpmate
  • all for one, and one for all
  • one for all, (and) all for one
  • make out a case