Give your right arm for something/to do something

Pro Tip 1/3

Idiomatic Intensity

Used to express intense desire for something, emphasizing willingness to sacrifice greatly.

She would give her right arm to meet her favorite author in person.

Pro Tip 2/3

Non-literal

This is an idiomatic expression and isn't meant to be taken literally; it's about the strength of feeling.

I'd give my right arm for the recipe to this incredible cake.

Pro Tip 3/3

Informal Speech

It's a colloquial phrase, best used in informal settings and not in formal writing or speeches.

For tickets to that concert, I'd give my right arm.