There are 2 main definitions of drop dead in English:

drop dead1

1Die suddenly and unexpectedly: she had seen her father drop dead of a heart attack
More example sentences
  • After his wife suddenly drops dead while vacuuming, his life takes an unexpected turn.
  • Suddenly he drops dead and his soul is whisked away, to his not inconsiderable consternation, to heaven to be judged.
  • Only later did the pair find out that it was also the name of a racehorse which had performed well in country meetings for a while before suddenly dropping dead.
1.1 [in imperative] informal Used as an expression of intense scorn or dislike.
More example sentences
  • ‘Neil really is a nice guy,’ I said coldly. ‘I hope you drop dead.’
  • Every one of you guys should just drop dead and go to hell.
  • William murmured into her ear through clenched teeth. ‘Drop dead.’
See parent entry: drop

Definition of drop dead in:

There are 2 main definitions of drop dead in English:

drop-dead2

Syllabification: drop-dead

adjective

informal
Used to emphasize how attractive someone or something is: her drop-dead good looks [as submodifier]: a drop-dead gorgeous Hollywood icon
More example sentences
  • She knew she wasn't stunningly beautiful or drop-dead gorgeous but a few have remarked on her ‘unique’ look before also.
  • Both of them would be drop-dead gorgeous, complete knockouts.
  • This rhubarb and blueberry soufflé is light, lovely, rich and drop-dead gorgeous.

Definition of drop dead in: