[reyk-awf, -of] 
| 1. | a share or amount taken or received illicitly, as in connection with a public enterprise. |
| 2. | a share, as of profits. |
| 3. | a discount in the price of a commodity: We got a 20 percent rake-off on the dishwasher. |
rake off
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]