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Profits made from a transaction, usually in an inappropriate, illegal, or dishonest way. The mayor quickly resigned after it was discovered he was taking a rake-off from the local cartel's drug sales.
rake something off (of) somethingand rake something off
to remove something from something by raking. (Of is usually retained before pronouns.) Please rake the leaves off the lawn. Rake off the leaves.
Make an unlawful profit, as in They suspected her of raking off some of the campaign contributions for her personal use . This expression alludes to the raking of chips by an attendant at a gambling table. [Late 1800s]