Showing ones semi-boner to females for a thrill.
Wow, look at those babes by the pool. I think I will walk by and flip out my half hard cock and watch their reaction.
by flashboy June 29, 2003
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To lose control and attack someone
Man,ease up homie, I will flash on yo ass!
by Mark August 11, 2004
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adj; showey. ostentatious.
Mo fo think he flash as a rat with a gold tooth.
by herbie August 25, 2004
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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.
by deflatemouse March 13, 2004
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Pre-drawn designs for tattoos.
I was looking for flash of a shark.
by octopod February 18, 2004
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Flash is a program developed by Macromedia. It is widely used for internet development. It can be intergrated with most other Mecromedia products, such as d
reamweaver or Fireworks.
This program was developed in Flash
by Mince July 17, 2004
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70's Slang term for speed
Jim did 12 rails of flash and passed the fuck out
by Loomis November 17, 2005
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