out on a limb


In a difficult, awkward, or vulnerable position, as in I lodged a complaint about low salaries, but the people who had supported me left me out on a limb. This expression alludes to an animal climbing out on the limb of a tree and then being afraid or unable to retreat. [Late 1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.