do the business
1. To accomplish what needs to be done in a particular situation. You can always count on Rebecca to do the business if a situation has gone awry.
2. slang To have sex. I did go back to his place, but we didn't do the business, if that's what you're implying!
do the business
1 do what is required or expected; achieve the desired result. British informal 2 have sexual intercourse. vulgar slang