v. to fuck someone most vigorously and rapidly, as if one were The Flash.

n. a nonincendiary explosive which creates a concussive blast of sound and a temporarily blinding burst of light.
Henry: Ha ha! I got you with my flash bang!
Chris: Oh yea! *bumps into a wall* Well I flash banged your mom last night!
by Aktopus December 06, 2004

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1. ) Sneaky maneuver derived from Call of Duty 4 (flashbang grenade).

Cum in a female's eyes and then swiftly smack her square in the ear. She will experience a flash of white followed by a ringing in the ears - similar to the effects of a flash bang grenade.

2.) pre-ejaculation
-Sarah was asleep in my bed so I burst in and gave her the 'ol flashbang.

-She was giving me head then I finshed with the flashbang.

- I put it in and it was over...it was a total flashbang man...
by CODfish08 April 27, 2009

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The sexual act of 3 guys forcing a female to service them at the same time. While one guy sticks it in her mouth, the other two have her jerk them off into her both of her ear holes. All 3 men finish by ejaculating at the same time so that the female's ability to see and hear are inhibited, much like a flashbang.
Person 1-Did you see Jessica last night? That hoe was stumblin around like a damn drunk. It was like she couldn't see or hear anything, like fuckin Hellen Keller!

Person 2-Yea dude, she got flashbanged by a couple of freshmen.
by MoonHulio February 11, 2009

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When your stupid fatass GUY friend lifts up his shirt to show his boobs.
Mason flashbanged us at lunch today.
by Revzzzz March 05, 2015

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The devil woman's conniving tactic to (re)insert themselves into a man's life via sexual practice on a bro.

Dubbed flashbang because it is comparable to the disorienting nature of a flashbang grenade. One does not see or think clearly for a temporary amount of time after said flashbanging has resulted upon them.

This is often done by a "Ratchet" Ex-girlfriend who doesn't deserve to be with the said bro and shortly afterwords begins to weasel their way back into a comfortable status quo so they can suck all life from the target and all bros (and bras) of said target.
to flashbang :

"Dude, did you hear what happened with Randy and Galinda?"

"We've talked about this bro. Those two names are never to be mentioned in the same sentence."

"Dude, I know, but we have a code black."

"I've never even heard of code black."

"Dude. I know...She flashbanged him!"

"My god!...Whats the status?"

"Kill confirmed. That but fucking whore`s gottem.
by Chaluupa Batman December 11, 2012

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1. To fuck a girl really fast in any orpheus.
2. A stun grenade
Kevin flashbang my pussy please.
by GriffeyJR February 26, 2009

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When you fart but no one suspects that it's you
"Ha I'm so lucky, I just threw a flashbang earlier in class."
by Flamespittah38 May 17, 2016

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The flashbang is when you go down on someone after eating some spicy food and it sets her/his va-jj/cock on fire. This is sometimes done by accident after drunken encounter at Buffalo Wild Wings but can also be done intentionally by filling your mouth with hotsauce if your eating a dick/pussy you don't want to eat again.
Medic: How can I help you today young man?

Pvt Dicks: My goddamn dick sausage is on fucking fire doc, I can't take it!

Medic: Oh my god... You've been flashbanged son! Nurse I'm going to need a bag of ice, a bottle of Jergens and a copy of Backdoor Hussies 3, stat!
by Poodle-Slayer Kitten-Rider July 31, 2016

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