To go out on a limb is to expose yourself to danger. ) It's usually used when we expect some kind of reward for our trouble (eg, being able to pluck the most delicious apple). Let's say your best friend needs a job, so you recommend him highly to your boss -- even though you know his talents are modest.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.