flash-bang
noun
variants
or flash-bang grenade
or flash grenade
plural flash-bangs or flash-bang grenades or flash grenades
: an explosive device that produces a blinding flash of light and a sudden, loud noise intended to temporarily stun, distract, and disperse people and that is thrown by hand or projected
Flash-bangs have become a popular but controversial diversionary tactic used by SWAT teams. The devices give officers key seconds to make tactical moves and are especially useful in hostage situations.—Michael S. Rosenwald
When armed motorcades arrive at the entrance, Marines toss flash-bang grenades to clear the crowd.—Gregg Zoroya
Late in the afternoon, officers fired about a dozen flash grenades at the suspect. The loud, bright projectiles seemed to disorient him, and officers were able to rush in and take him into custody.—Jenna Lyons and Peter Fimrite
called also stun grenade
Cite this Entry
“Flash-bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash-bang. Accessed 7 Jul. 2026.
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