In Croatia, due to local histories of violence, purist language ideologies, and the essentialist belief that nations and languages form an inseparable nexus, the ability to speak pure “Croatian” (čisti hrvatski) is perceived as a sign of morality while the use of “Serbian” indexes immorality. Through repetition over time and institutional support – through ethno-linguistic enregisterment – linguistic practises are able to map ethnicity and morality onto the bodies of speakers, making the use of language in Croatia a delicate and politicized performance. Based on extensive ethnographic fieldwork, this article explores the ways in which linguistic performances of čisti hrvatski by the newly minoritized Serbs in Vukovar become an integral part of performing political subjectivity. The eagerness of some of my interlocutors to perform čisti hrvatski in the public sphere becomes a way to embody exemplary minority subjectivity and to negotiate their stigmatized ethnic difference by demonstrating a sense of belonging to the Croatian nation-state.