a done deal

US /ə dʌn diːl/
UK /ə dʌn diːl/
"a done deal" picture
1.

trato hecho, asunto zanjado

a final agreement or decision that cannot be changed

:
The contract is signed, so it's a done deal.
El contrato está firmado, así que es un trato hecho.
Don't worry, the merger is a done deal; the announcement will be made next week.
No te preocupes, la fusión es un trato hecho; el anuncio se hará la próxima semana.