a done deal

done deal

Something that has been decided or finalized. Once we sign those papers, the sale of the house will be a done deal. I had no idea I'd have to make more payments to receive the merchandise—I thought it was a done deal!
See also: deal, done

a done deal

If something such as a plan or project is a done deal, it has been completed or arranged and it cannot be changed. He called a journalist to announce that his nomination was a done deal. The pact is far from being a done deal. It must be ratified by the legislative bodies of all three countries.
See also: deal, done

a done deal

a plan or project that has been finalized or accomplished.
1991 New Yorker The French are still overreacting to German unification, even though it is a done deal.
See also: deal, done

a done ˈdeal

(especially American English) used to describe a decision, an arrangement, a project, etc. that is completed and cannot be changed: The managing director denied that the merger was a done deal, and said they were still in negotiations.
See also: deal, done