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

When someone takes a picture of themselves in a mirror, the flash blurs out their face, resulting in flash face.
Did you see the pic she posted? Almost couldn't see who she was, there was so much flash face. Total fail.
by LanguageEvolves June 26, 2012

by ItsVickyB September 27, 2011

A group of people who set a time with there cell phones to meet at a certain place and time to do gang stuff and are just as quickly gone in all directions.
by The wrath of God September 26, 2010

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

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

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
