Uncommon usage, technical jargon, verb, meaning 'to erase'.

Comes from 'eeproms' (Electrically Eraseable Programmable Read Only Memory) units in days of yore which were 'flashed' so they could be written on again. Typically, a computer geek would understand this usage.
PC Onwer: "So, should I through my broken computer in the trash?"

Technician: "Make sure you flash the drive first, for security reasons."

PC Onwer: "WTF?"

Tech: "Uhh...erase all the information."
by T.R.I. July 24, 2006
Fastest man alive.
"Did you see that streak?" "Of course you didn't, that was the Flash."
by I-Know-Everything April 16, 2015
“Flash” is another term that originated from rock climbing. The term “flash” is used to describe a flawless climb. A climber can say that they flashed a climb if they went from bottom to top without hesitating or taking any falls.
I just flashed that 5.11 climb, did you see that? I’m the man!
by Csal May 05, 2011
Flash, also known as, Adobe Flash Player and Macromedia Flash Player, is a major computer virus affecting multiple operating systems for over 10 years. The virus disguises itself as a game loader (for cheap little website games like the ones found on Facebook) as well as some video sites, but in reality it opens your machine up to hundreds of security risks, and loads up millions of not only annoying but extremely CPU intensive advertisements on websites that often make your web browser either start to lag like crazy or just simply crash unless you have a very powerful computer. My 2GHz C2D system could barely handle Flash ads, the CPU fan had to come on full speed to cool it as it ran so hot, just from ADS! Almost all computer security experts agree that Flash should NEVER be installed just for the security risks alone, never mind all the other stuff this virus leads to. Apple is one of the first companies to no longer preinstall Flash on their computers, and it is not usable period on their mobile devices. It is recommended that if you have A PC or an older Mac which ships with Flash, you remove it immediately.
Person 1: Did you know that Flash has had over 100 unaddressed major security holes for over a year now, leading to many extremely harmful viruses affecting PC's and Android phones, and even Mac's?
Person 2: I don't care, I wanna watch my porno videos and play these poorly done games on Facebook!
by iBoy2G February 21, 2011
To correct someone, when they are wrong or mistaken.
Person 1: Did you hear Nelly's song "Hey must be the money?"

Person 2: Flash, that song is called "Ride Wit Me."
by Jameelah December 02, 2007
Nerds think it's a computer program, jocks think it's when a girl shows you their boobies. In reality, it is an awesome super hero from THE JUSTICE LEAGUE! YAAAAY!
1. Ooh, is that the new Abobe Flash Player? *stiffy*

2. Yo, bitch, flash me some titties up in hurr! *stiffy*

3. Oh, Flash, fuck my man-gina harder, faster, oh yeah. *stiffy*
by Because I Feel Like It March 03, 2008
yell this when someone says something dumb, and you get to slap their forearm unless they say "could've been" first.
say a bunch of dudes walk up into in-n-out burger
griffin: yo how much is a mcchicken
everybody else: flash!!!!!
by macmuthafuckindre July 08, 2009
Once you have sex with a girl, you ditch her that way you dont have to commit or anything (for use by pimps only)
Pimp-"Hey man, I got with that girl I was dancing with last night. She was all over me and said she wanted me for herslef so we wwnt upstairs and did it until the morning and then i just ditched so I wouldn't have to commit."

Pimp wingman-"So you pulled a Flash on her?"

Pimp-"You know it."
by Bearman December 05, 2007
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