This article explores the ways in which Asian American teenagers creatively appropriated two African American slang terms: aite and na mean. While some teens racialized slang as belonging to African Americans, other teens authenticated identities as slang speakers. Through close analysis of slang‐in‐use and particularly of the metapragmatic discussions such uses inspired, this article examines how the teens specified relationships between language, race, age, region and class, while achieving multiple social purposes, such as identifying with African Americans, marking urban youth subcultural participation, and interactionally positioning themselves and others as teachers and students of slang. As slang emerged with local linguistic capital, the teens used slang to create social boundaries not only between teens and adults, but also between each other. The discursive salience of region implicitly indexed socio‐economic status and proximity to African Americans as markers that teens drew on to authenticate themselves and others as slang speakers.