When, from a sober state, you consume a large amount of alcohol (preferably liquor) in a very brief amount of time. By doing so, you go from completely sober to instantaneously drunk, bypassing the 'buzzed' stage of alcohol consumption.
I just got here, the game starts in 20 minutes, and I'm not paying $8 for a beer. Better get flash drunk. Hand me that Jack Daniels.
by Cpt. Jack Awesome December 12, 2013

Guy:"Damn girl, I'm horny as fuck!"
Girl:"My mom will be back soon- only have time for a flash handy."
Girl:"My mom will be back soon- only have time for a flash handy."
by HeroHandy May 7, 2019

"Yo you got paid right Laurence?"
"Yeah but I went casino"
"How much you lose?"
"Well 300 Got Jack'd and the other 200 was gone in a flash"
"Yeah but I went casino"
"How much you lose?"
"Well 300 Got Jack'd and the other 200 was gone in a flash"
by 420manting May 22, 2016

Man#1: Look at homie over there tryin' to Mack on Becky.
Man#2: Oh that ain't nobody but Flash Gordon!!! She wouldn't even stop to talk to him if that fool wasn't drvin' a brand new Cl 500. Dude has no game.
Man#2: Oh that ain't nobody but Flash Gordon!!! She wouldn't even stop to talk to him if that fool wasn't drvin' a brand new Cl 500. Dude has no game.
by boo&brasen October 29, 2014

To be final flashed is to be completely and utterly REKT. A metaphor referring to Vegetas ultimate attack, which basically decimates everything it touches in a broad, staight beam.
*after pwning in a gaming session*
Winner: told you I would final flash your ass
Loser: *cries and questions their existence*
Winner: told you I would final flash your ass
Loser: *cries and questions their existence*
by GreyWarden47 April 3, 2019

taking a axe bottle of body spray and stabing it open with a sharp object then throwing it to an area of people and they will get bombed by axes shitty smell.
the other day I flash banged Xavier while he was taking a poo then held the door so he couldn't get out
by team awesome'o March 28, 2011

When a Female squirts into a Male's mouth, then the male quickly spits it onto the Female's face, giving her a grenade-like splatter all over her.
We had an amazing time at the party last night! Some girl and I had sex, and I ended up giving her an unexpected Flash Grenade.
by The Dichter December 8, 2015
