ABSTRACT Why do India and Pakistan always quarrel over terrorism? The prevailing arguments more often implicate intriguing South Asian geopolitics surrounding the unresolved Kashmir dispute or pathological partition of British India in 1947 to explain this puzzle. Surprisingly, why and how the two countries verbalise terrorism has hardly been investigated in a comparative framework as a potential underpinning of this historical syndrome. This void has deprived South Asia’s existing literature and public and policy debates of an understanding of the underlying determinants of the terrorism discourse. Namely, how has the discourse originated, what are its distinct metaphysics, and how it has shaped and normalised discursive practices at significant moments in the history of these two countries, and with what consequences? This article responds to these broader questions. It argues that among other vital underpinnings, the Indo-Pakistan terrorism discourse, with its origins in colonialism, functions to institute and enable rival practices of exclusionary politics, doublespeak and propaganda. More importantly, it nurtures self-fulfilling concepts of statehood deriving from a constructed “real” reality characterising an imagined geopolitical pathology that, in turn, perpetuates Indo-Pakistan imperialism. In addressing this argument, the paper makes multiple original contributions, including identifying research avenues and indicating various intersecting causes of friction that afford reconciliation possibilities to the stakeholders.