This paper examines adolescent girls' multimodal design that challenges/resists patriarchy. Acts of uploading and multimodal design are discussed in terms of Bulter's theorisation of discursive performativity. The author suggests the girls employ a form of 'linguistic agency' or 'discursive agency' that allows them to make use of a wide range of multimodal design practices often unavailable in print dominated middle years classrooms. The girls in the study were involved in a set of relationships over time, both inside and outside of school in virtual and real time communities of practice. As a result, they engaged with particular areas of curricular knowledge differently than boys. The findings suggest that within online communities of practice, new contexts emerge where adolescent girls can contest the discourses of patriarchal power.