drop-dead date

British  

noun

1. an absolute deadline that cannot be missed

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Example Sentences

Pushed out of mind by a handful of deadline delays, Californians now face another drop-dead date to apply for the Real ID if they plan to travel domestically next year.

From Los Angeles Times

For putting together a ticket, Mr. Davis said, “April 15 is kind of their drop-dead date.”

From New York Times

The deal has a “drop-dead” date of July, until which JetBlue must use its best-faith efforts to close the transaction, including appealing the judge’s ruling.

From New York Times

Their estimates are all within a few days of Treasury’s projections on the drop-dead date.

From Seattle Times

“I think September’s the actual drop-dead date, so we’re good.”

From Washington Post