The stranger" has been a recurring figure in anthropology and sociology, often taken to represent the antithesis of kinship and friendship, or as personifying the anomie of contemporary social life. Drawing on participant observation documenting interactions with strangers occurring on social media in a rural Chinese town, I demonstrate how online stranger relations happening therein rework existing boundaries between friends and strangers while also assuming uniquely gendered qualities. This fuels social imaginaries and moral concerns around such interactions, posing an implicit threat to traditional forms of relationships, especially monogamous marriage.Building on this unique instance of stranger relations, I argue for the need to develop an anthropological notion of "strangership" capable of treating such connections as an analytically distinct relational form. Acknowledging the local specificities and potentialities of strangership is, I claim, a necessary first step for unlocking the concept's comparative potential for the anthropological discipline. [social media, strangers, strangership, gender, China] RESUMEN "El extraño" ha sido una figura recurrente en la antropología y la sociología, tomado a menudo para representar la antítesis del parentesco y la amistad, o como personificando la anomia de la vida social contemporánea.