Many Muslim migrants in Korea, despite their legal status and vital contributions, are otherized through the appropriation of religious discourses and rhetoric as standards for defining “others.” These otherized migrants are often excluded from the social realm of native ethnic Koreans on the basis of religious beliefs and expressions. When migrants do not openly reveal their religious identity, they are generally tolerated within residential neighborhoods. However, those who visibly express their religious identity are more readily perceived as impure beings incapable of coexisting within the Korean social sphere and are subsequently excluded. The strategy of invoking impurity is a common tool for social exclusion, typically by labeling others as impure. In such cases, impure “others” are rejected, and coexistence with them is denied. However, in Daehyeon-dong, Daegu, a notable inversion of this strategy occurred when local residents opposed the construction of a mosque in their neighborhood. By cooking whole pigs and displaying pig heads near the construction site, the residents emphasized their own impurity to Muslims as a way to signal the impossibility of coexistence. This chapter examines the rhetoric of impurity employed in this case to justify hatred and discrimination against otherized migrants, offering insights into the dynamics of social exclusion in multicultural Korea.