Rake-off and Tidy sum

Rake-off noun - A percentage (of winnings or loot or profit) taken by an operator or gangster.

Tidy sum and rake-off are semantically related. In some cases you can use "Tidy sum" instead a noun phrase "Rake-off".

Tidy sum noun - (often followed by `of') a large number or amount or extent.

Rake-off and tidy sum are semantically related. Sometimes you can use "Rake-off" instead a noun phrase "Tidy sum".