From Longman Dictionary of Contemporary Englishout on a limbout on a limbALONEalone and without help or support All the other countries signed the agreement, leaving Britain out on a limb. He’d gone out on a limb (=taken a risk) to help us. → limb
Examples from the Corpus
out on a limb• She was a chameleon, out on a limb, and had chosen a difficult camouflage.• And the only way you're going to fail is if you get out on a limb.• But going out on a limb is one thing-this is going out on a twig, going out ona leaf.• Breaking new ground often requires going out on a limb.• Until you came along, Century House was right out on a limb.• Junior was out on a limb.• It was about ninety pounds and he went out on a limb for it, too.• But only a purely wild man went out on a limb of four or five minutes. 