done deal
An irrevocable agreement, as in Once you've signed the lease, it's a done deal. This slangy expression, first recorded in 1979, may have come from done thing, originating in the late 1600s.
Words nearby done deal
donbass, doncaster, donder, donders' law, done, done deal, done for, done in, done to a t, donec, donee
The American Heritage® Idioms Dictionary
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