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seal the deal

[ seel thuh deel ]

idiom

  1. to complete or successfully negotiate an agreement:

    If our top executive can't seal the deal, no one can.

  2. to secure or ensure a successful conclusion: A last-minute goal sealed the deal for Baltimore.

    He had aced both interviews, and if the director liked him that would seal the deal.

    A last-minute goal sealed the deal for Baltimore.



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Word History and Origins

Origin of seal the deal1

First recorded in 1950–55

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sealskinsea lungwort