for all (one) is worth

1. To the greatest degree or extent of one's ability; to the utmost; as vigorously or intensely as possible. When I saw the police approaching, I ran for all I was worth. We could clean the house for all we're worth, and Mom would still find something to complain about! You two need to code for all you're worth to get the new software ready by the release date—which is rapidly approaching!

2. As much as one has available or to offer. If you can't get her to sign a prenup now, that guy is liable to take her for all she's worth if they get divorced. I know you stole my business idea, and I will sue you for all you're worth! If he has evidence of the crimes I've committed, he's liable to blackmail me for all I'm worth!

for all someone is worth

1 as energetically or enthusiastically as someone can. 2 so as to obtain everything you can from someone. informal

1 1995 Kate Atkinson Behind the Scenes at the Museum In the kitchen, Brian, Adrian's lover, is wearing Bunty's pink rubber gloves and washing up for all he's worth.