You've given an eye and a leg to the cause.

But it does give Rose's lawyers a leg to stand on.

"Being part of a community gives them a leg up that they would not otherwise have."

In her case, she believes, "what has given me a leg up more than anything else is hard work."

I would have given my arms and legs for him.

Even after that, it would give him a stiff leg before too long.

"That gives a course legs and a sense of momentum."

I give the kids a leg up to get to the meager fresh air.

"Give me a leg up so I can get to that top shelf."

I thought it'd give me a leg into my new field, but economically, it hasn't paid off.