To get photographed by a strategically placed speeding camera.
Fuck, was that a speeding camera back there? I think I just got flashed for cash!
People who spend money that they do not have.
or
People who spend money on the wrong things.
Sam: Yo man, what do you think of Cody? He dress fresh , doesn't he?
Charan: Idk man, he's "All Flash No Cash"
Sam: Word
12π 1π
To flash your cash you have to show of all of your money
donβt flash your cash all the time
Alert other motorists of a speed van ahead
Flash for cash: Flash your lights at an oncoming car to alert them of a speed van in the direction their travelling. Definition can vary country to county but this is the general meaning in Ireland