Top Definition
When a girl opens her legs while in a skirt and you get a flash of her pants or gash.
Hey close your legs!
I am getting mega gash flash.
by SammiiSprkl April 26, 2010
flashing ones female sexual organs for a considerable amount of money or just attention. mainly attention of cameras/paparazzi.
OMG britney spears GASHFLASHED again!
by Jabeha January 19, 2008
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