An explosive device weapon developed for use in crowd control that consists of a large charge, typically about 15 grams, of flash powder contained in a vented metal case with a triggering device similar to those used in ordinary hand grenades. While not designed for lethality, these are very dangerous weapons when used improperly. In 2014 a small child in Georgia was accidentally maimed by incompetent police officers who tossed one of these devices into a crib during a botched drug raid. These devices typically contain about five times the explosive charge of an ordinary M-80 firecracker, which contains three grams of flash powder.
Police officers maimed 18 month-old Bounkham Phonesavanh Jr. with a flash bang. They were never indicted.
by Camp420Guy May 02, 2015
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a weapon a flamer named silky used to fuck people up.
"watch out ur eyes" "shut up u stupid faggot quit throwin dat shit!
by fat March 05, 2004
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When you don't expect to fuck, and then bam all of a sudden intercourse.
Dude I went to the bathroom at the club last night, and this chick grabbed my dick. I got flash banged.
by Johnny Longdeck November 23, 2016
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When a girl flashes a guy, then gets banged by beformentioned guy.
"I wanted to get his attention so I Flash Banged him."
by KindlyFuckOff November 04, 2019
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an adventure, escapade, vacation or other opportunity involving an unexpected sexual encounter whether its during a casual, on going, hook-up, on sleeping terms, or within an actual romantic relationship.
son: what is considered rape nowadays?

father: a non consensual, illegal, immoral, amoral, and one sided (in the guy's favor) flash-bang. I don't give a rat's ass whether it's the correct legal definition, that's for the State to decide, but there you go, that's my definition of rape.
by sexydimma May 23, 2012
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