This chapter considers affect as a key for mobilizing multiple identities of language learners toward a politics of refusal against colonial and capitalist subjectivities of language. While recent research has focused on affect as a lens for understanding language education and language policy, this chapter argues that affect is not simply an aspect of identity to be studied, but can open up spaces for reflecting on, researching, and refusing subjectivities that reproduce oppressive relations of power. Focusing on the case of learning English as a hegemonic global language, and drawing from work on decolonial, feminist, and other revolutionary movements that highlight the disruptive potential of affect, the chapter explores how a focus on affect can serve as method – lived, embodied sites of tension with injustice and inequality that can guide language learners, educators, and researchers toward social transformation, political action, and relations of solidarity via their linguistically mediated identities.