flashing 

Revealing your "private parts" to another person

ie.
whipping out your penis
showing your tits

Flash me for a dollar

flashing by Mike Truitt June 14, 2003

flashing 

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.

flashing by flashboy June 29, 2003

Flashing 

The act of dialing a phone number and letting it ring for no more than three seconds. Popular in Nigeria where 'flashers' are usually piss poor teens/adults low on airtime. The act is very annoying to the individual being flashed as the unwritten law is that you have to call back immediately, but again it is very economical to the 'flasher'.

This olé is flashing me, let me go and buy airtime.

Flashing by InebriatedCat June 30, 2018

flashing 

Getting angry or aggro and going off on someone, often for no good reason.

LA cats don't seem to know this one, so it must be a Bay thing?

From E-40 song "Flashin'"

"The holiday just came on the first second and third of the month.
Made my check late and i got to fah-lashin on motherfuckers.
Next door neighbor hollerin that shit about my beat too loud
I walked up the motherfuckin steps and i got ta tellin that bitch i'm flashin
Send a rookie to the store to bring me back some rossi rhine
He brought me back chablis, and i get to flashin on that bitch-ass motherfucker, silly nigga
Yknahmsayin? a motherfucker up in this motherfucker flashin.
Get to testin my testicles nigga and i'ma flash on yo' ass."

Urban dictionary wants the complete word in here, so here you go UD: flashing

http://www.youtube.com/watch?v=MiSKFMq1gOo

flashing by Torsky October 16, 2008

flashing 

in chess, a slang term for 'checkmate' not to be confused with taking off ones clothing.

bob: im flashing you!
joe: WHAT?!?!? keep your clothes on!
bob: no, joe. it means checkmate!
joe: oh!

flashing by checkmateflasher March 26, 2009

flashing 

The procedure of re-programming the flash-memory / Software / computer memory /Read-only memory of an elctronic device

1.I flashed my DVD-ROM yesterday from the flashing utility
2.I need to flash my BIOS since its pretty old

flashing by Aman Y January 16, 2008

flashing 

when someone over reacts to a situation and starts acting crazy or aggressive.

Man...I told john I fucked his girlfriend and he started flashing on me.

flashing by lalalalahh May 3, 2007