‘I'm Mexican, remember?’ Constructing ethnic identities via authenticating discourse1

This paper examines how an ideology of cultural authenticity emerges in the casual but playful conversations of a bilingual Mexican American friendship group. Authenticating discourse, as illustrated here, is part of an ongoing, ordinary interactional routine through which speakers take overt (authentication) stances, which I call authenticating moves , to display, impugn, vie for, and enact forms of ethnic identity. In the data, issues of authenticity in relation to Mexicanness emerge as a result of the interactional exploitation of three ideological constructs: purity of bloodline, purity of nationality, and Spanish linguistic fluency.