Transcending the #MeToo movement, our study gives voice to socially marginalized women from the Global South. We investigate the largely invisible digitally-mediated negotiation of sexual harassment experiences by rural-urban migrant Chinese women (n=41) in their workplaces. An intersectionality lens reveals nuances in comparing the impact of mobile communication practices in the contextualized intersection of gender, class, and the organizational structure across informal and formal economies. Women in the informal labor market were likely to engage in bottom-up disruption of a prevailing male-dominant economic system by using mobiles to establish collaborative groups for job information sharing while resisting male intermediation. Women in a registered factory, in contrast, engaged in the topdown transformation of patriarchal culture. Female managers, in newly gained leadership roles, used their professional authority to encourage ordinary female workers to re-shape the discursive gender power of mobile spaces shared with male workers. Our study presents a variety of complex, dynamic, and strategic mobile practices enacted by marginalized female populations against sexual harassment occurring in the Global South. We reflect on digitized female resistant culture as part of broader societal change.