Top Definition
Affliction wherein one compulsively throws up poser gang signs whenever a picture is about to be taken.
Jen: Everyone say 'cheese'! ...John, what are you doing with your hands, you look like you have cerebral palsy.

John: Sorry! It's my gangsignusitis, I can't help it!
by mr. smithLV July 10, 2008
8 Words related to gangsignusitis

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