The processes of radicalisation have understandably been at the forefront of much literature surrounding terrorism. This critical literature review is written to interrogate two prominent “macro” level theories of radicalisation. This is done by outlining the theories of Martha Crenshaw and Ehud Spriznak. They will be applied to a case study of northern Nigeria’s terrorist insurgency group, Boko Haram, and problematized by the theories of violence and ideology from Slavoj Žižek and Marx’s theory of historical materialism. The application of Crenshaw’s/Spriznak’s theory suggests that both are applicable and helpful in understanding Boko Haram but do little in explaining its chosen methods. Without an application of critical theory to Boko Haram’s methods, Crenshaw’s and Spriznak’s theories fail to account for Boko Haram’s frighteningly militant misogyny.