Teacher organizing in the twenty-first century presents new and understudied challenges and opportunities for union leaders and members. In this article, we explore the structure and function of the secret Facebook group created and used by teachers in West Virginia (USA) prior to, during, and since their historic statewide strike in February 2018. Working from poststructuralist and social justice unionist frameworks, we analyze focus group data generated with the group's admins and moderators as well as survey data collected from the group's general membership. Together, these data reveal a number of overt and covert group functions, including allowing members to imagine a new good teacher subjectivity. We argue that these covert functions--particularly reimagining the good teacher subjectivity--were and remain vital to the Teachers TOGETHER community and provide a model for other labor groups; as teachers around the United States and abroad continue to organize, leaders must make these functions (especially in online organizing spaces) just as explicit as more pragmatic functions.