We are parts of the gang.<br/><br/>We are gangsters.<br/><br/>Gangsterism is a serious problem among young teenagers.<br/><br/>We are parts of the mafia.<br/><br/>We are mafia members. (Is this wrong?)<br/><br/>Is there such a word as gangsterism in British English?<br/><br/>I have searched Oxford and Cambridge and I did not find a definition for it.