Meaning:
This expression refers to a document or an agreement which has been officially signed and completed satisfactorily.
Examples:
- Therefore I ask for a redoubling of our efforts to try to get this important transit agreement with Switzerland signed, sealed and delivered.
- Be that as it may, the report offered to us today seems to regard the independence of Kosovo as signed, sealed and delivered, because the aid it proposes is nothing short of a conventional donation to a country outside the EU.