gangstaPronunciation: /ˈgaŋstə/Definition of gangsta noun 1 black slang a gang member: [as modifier]:he raps about the gangsta life 2 (also gangsta rap) [mass noun] a type of rap music featuring aggressive macho lyrics, often with reference to gang violence. Origin: 1980s: alteration of gangstergangsta in other Oxford dictionaries Definition of gangsta in the US English dictionary