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

be out on a limb

alone and lacking support from other people Because we're geographically so far removed from the main office, we do sometimes feel as if we're out on a limb.
See also: limb, on, out