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Wiktionary
flash-bang

n. A hand grenade that produces a very bright flash and a loud explosion, but no shrapnel and minimal explosive force, to disorient the target.

Wikipedia
Flash-bang

In warfare Flash bang may refer to:

  • Flash-bang, variety of hand grenade designed to stun
  • Flash-bang, method for sound ranging of artillery

Usage examples of "flash-bang".

Another flash-bang following on its heels, and another, as though an ack-ack gun were going off beneath our feet.