Flash 

wearing nothing under a coat, only to open it and show your junk to everyone.

Some shithead came to the party, opened his coat, and flashed everyone.

Flash by Ricky Roma September 30, 2003

flash 

To show an "inappropriate" body part by quickly moving a object or artical of clothing out of the way then back "flashing" the part at somone

dude, she just flashed you!

flash by Chirs Stage June 17, 2005

Flash 

HM 05 of the Pokemon games; it lights up dark areas (like caves), and in battle reduces your foe's accuracy.

Flash is a Normal type attack; it can be taught to nearly every Pokemon

Flash by Shawn B. October 23, 2003

Flash 

A DC Comics superhero with the ability to run at impossible speeds from sound to light. There have been lots guys to wear the costume in the past(Jay Garrick-Barry Allen)But the coolest one so far is Wally West who started off as the original Flash's sidekick. One thing about the Flash is that he makes a lot of F'ing enemies, so he famous for his Rogues Gallery.

The Flash: Fastest Man Alive!

Flash by Tolin December 28, 2005

flash 

To lose control and attack someone

Man,ease up homie, I will flash on yo ass!

flash by Mark August 11, 2004

flash 

adj; showey. ostentatious.

Mo fo think he flash as a rat with a gold tooth.

flash by herbie August 25, 2004

Flash 

Fastest man alive. Runs the speed of light(that's 186000 miles per second holmes)also the most kick aznass superhero ever to live, he is so fricken awesome that he could f your mom fifty times and then run around the world in less than a second.

Stoner: Dude! Why is your mom lying on the floor naked in a pool of her own blood?

Dude: I dunno, must have been the flash.

Flash by deflatemouse March 13, 2004