William Washabaugh has produced works of critical scholarship in linguistics and popular culture.  His studies of the Creole language of Providence islanders and of the Sign language of Deaf islanders raised doubts about prevailing views of linguistic variation. Whereas the dominant opinion in studies of Creole variation had emphasized universal constraints, the Providence case, as published in the flagship journal Language (1977), demonstrated that other forces, external to language, bear on that variation. In Five Fingers for Survival: A Deaf Sign Language in the Caribbean (1986), Washabaugh found reasons to question the dominant assumption that the vernacular signing of the Deaf is guided by universal acquisition constraints, again pointing out relevant forces external to the language.  These queries and objections culminated in Speak Into the Mirror: A Story of Linguistic Anthropology (1988) which reconsidered the foundational role played by linguistic theory in the development of anthropological thought.

Beyond strictly linguistic issues, Washabaugh explored the social forces that bear on non-verbal  expressions and communications.  His studies of flamenco artistry in Flamenco: Passion, Politics, and Popular Culture (1996) and Flamenco Music and National Identity in Spain (2012) pointed out that flamenco song and dance are far more responsive to political forces than had been supposed in existing accounts and scholarly description.  His study of trout angling in America, Deep Trout: Angling in Popular Culture (2000), made a similar point, namely that casting a fly on a quiet stream is far from being the simple pleasure it is made out to be.  It is instead freighted with the weight of class conflict and economic opportunism.

Washabaugh also confronted conventional wisdom in religion and theology. In his Waltzing Porcupines: Community and Communication (2004) he proposed that religious communities (no less than Creole and Deaf communities) and religious practices (no less than flamenco and angling practices) always involve negotiations with external forces. A peaceful prayer is no less illusory than a pure flamenco performance or a sublime trout on the line.

His current project, Silvered Screens: Self in Cinema (forthcoming),  pursues a study of more than five hundred movie moments in which characters react to their mirror images. The purpose of this study is to discern  how personal identity is handled, how “self” is done. Rather than exploring the ways in which people conceive of their selves, this study inquires into the presuppositions of people who attend to their mirrors, sometimes preening, sometimes wincing, attacking, or even shooting the glass they see. Silver Screens concludes that self is far from simple; it is fraught with hidden forces, not unlike our everyday performances of speech, sign, music, and angling.