Gangstafrenia Share definition Flag Someone that is obsessed and deluded, thinking they are in fact a Gangsta, usually white boys. I'm sorry, but your son is suffering from extreme gangstafrenia, the only thing i reccomend is to bitch-slap him until he is no longer the shiz-nit. Gangstafrenia by Hajpoj December 3, 2004 0 0 Get merch