Peripheral Linguistic Brutality is a sociolinguistic investigation into the production of "metalness" through language in the Asia Pacific. Concentrating on the ways local music scenes adopt, reject, and modify linguistic ideologies, the authors (hosts of the podcast Lingua Brutallica) examine how translocal participation in metal settings shapes how and why specific language forms are used to construct "metal language." Although much research has been done on language flows and use in global subcultures, their volume intervenes in two key ways. First, most prior work has centered on hip-hop, which unlike metal has an established "origin" dialect, namely AAVE (African American Vernacular English), linked to concepts of authenticity in the scene. Second, writing on global language flows has focused on what happens when a language, mainly English, enters a new space or context—not on how individuals employ imported forms and reimagine already extant linguistic resources as indexes, or markers, of new identities. Through interviews with practicing metal lyricists from Australia, Indonesia, Japan, and Taiwan, Peripheral Linguistic Brutality therefore fills gaps in the knowledge of language's role in translocal subcultures. Specifically, it sheds new light on how global subcultures spawn new local beliefs about the meaning and purpose of language forms, the sociolinguistic conflicts that can arise and influence language use when a scene enters a new locale, and metal itself as a global practice.