would give your right arm for something/to do something

give (one's) right arm

A figurative phrase that highlights one's interest in having something or eagerness to do something. A: "I'm going to the concert on Saturday!" B: "Aw man, I would give my right arm to have tickets to that!" I would give my right arm for your sister's gorgeous hair!
See also: arm, give, right
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

would ˌgive your right ˈarm for something/to do something

(informal) want something very much: I’d give my right arm to own a horse like that.
See also: arm, for, give, right, something, to
Farlex Partner Idioms Dictionary © Farlex 2017
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