A Reverse Flash is when you're pushing out a fat shit turd but midway your butthole clenches and it make the turd go in reverse.
Dale: "So yesterday i was so constipated that I had a reverse flash."
Ted: "Did it feel like getting anal?"
Dale: "Fuck you Ted."
Ted: "Did it feel like getting anal?"
Dale: "Fuck you Ted."
by BrownBearr November 17, 2017

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

"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

A social gathering on an "off night" of the week, usually at a bar or someone's house/apt, that starts out small but suddenly, unintentionally, and randomly reaches critical mass and turns into drunken mayhem.
"Last night McHugh and I went to the pub to have a few beers, but then people randomly started showing up and it turned into a flash party. Some Excedrin would be good about now."
by NDFitz May 1, 2006

by Reuel Titus October 16, 2003

I had a flash in the pants from thinking about the night before, but realized I can't let it interrupt my work.
by The Return of Light Joker November 1, 2011

1) When a character in the televison show LOST has an episode about them where the flashes are about their future and what it will entail.
2) To see your future or an audience witnesses your future and you don't know it.
2) To see your future or an audience witnesses your future and you don't know it.
1) Guy 1: I cannot believe Sayid is a hitman, Jack is living with Kate, Kate's raising Aaron, and Hurley is back in the mental hospital!
Guy 2: Yeah it's awesome and Ben totally kicked the asses of those two dudes on the horses in the Sahara desert!
Guy 1: Sweet action!
2) Guy 1: Dude, I think I'm going to die soon since everyone has been getting flash forwards and all I've been getting is flashbacks!
Guy 2: Yeah it's awesome and Ben totally kicked the asses of those two dudes on the horses in the Sahara desert!
Guy 1: Sweet action!
2) Guy 1: Dude, I think I'm going to die soon since everyone has been getting flash forwards and all I've been getting is flashbacks!
by colin rooney July 3, 2008
