From Longman Dictionary of Contemporary Englishgangstagang‧sta /ˈɡæŋstʌ/ noun [countable] American English informal someone who is a member of a gang gangstas in South Central L.A.
Examples from the Corpus
gangsta• And yet this gangsta poise coexists with a weirdly playful quality.Origin gangsta (1900-2000) gangster 