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1 definition by young thugs

 
1.
To flashout is to get highly upset with another person (this may lead to an altercation). Most commonly when you flashout on someone it is on a person that you detest.
girl A:(dancing in the club and bumps into girl B)
girl B: Bitch you better watch where you going!
girl A: No you watch where you going!
girl B: Mane, im finna flashout on this hoe!
by young thugs December 23, 2009
9 1