This chapter elaborates on the definition of Erdoğanism from the perspective of this book. To define Erdoğanism for the purposes of this book, the chapter first discusses the insecurities, anxieties, and fears of Erdoğanism. After this it analyses the Islamist populism dimension of Erdoğanism and how its narrative divides the nation into real citizens and their enemy the 'evil' Kemalist elite and the Homo LASTus grassroots and also all secular Turks who are dubbed as the 'White Turks'. In this imagination, the out-group is not only comprised of the citizen-enemies, there are also international groups, entities, institutions, lobbying groups and states that collaborate with both the evil White Turk elite. The chapter calls this populism ‘Islamist Civilizationism’. This discussion is followed by an analysis of Erdoğanist victimhood and resentment vis-à-vis the secular sections of society as well as the West. Finally, the chapter attempts to define Erdoğanism.