They were given a 'drop-dead date' of June 30 to accept or reject the contract.
an actress who is 'drop-dead' gorgeous
a 'drop-dead' evening gown
(..) There never was! You act like you've never been here before. I don't get here often enough. That's the problem. Can you picture how drop-dead gorgeous this city is in the rain? Imagine this town in the 's. Paris in the 's, in the rain; the artists and writers. (..)2011 Midnight in Paris