drop_dead
1. [ verb ] (biology) die (colloquial)
Synonyms: croak buy_the_farm pop_off choke conk snuff_it die_suddenly die_unexpectedly cash_in_one's_chips give-up_the_ghost kick_the_bucket
Examples:

"The old man finally kicked the bucket"

Related terms: die colloquialism
Similar spelling:   drop-dead
  drop_down
  draped
  dropped