In the framework of the coronavirus pandemic, aroused different activisms crossed by the digital in a relationship of support/conflict with the mass media in the face of government measures to control the outbreaks. When investigating the new modes of socio-political participation, the study focuses on a practice of urban activism attached to the logic of techno-discourse (Paveau, 2021a) to understand the functioning of a subversive discourse materialized in militant posters with the sayings #YoMeQuedoSinCasa (Barcelona, May/2020). The case was analyzed in relation to the techno-discourses that it subverts: the government propaganda #QuedaTeEnCasa and the massive response, #YoMeQuedoEnCasa, a virtuous techno-discourses (Paveau, 2015). Based on the theory of resignification (Paveau, 2021a) —about the technodiscursive practices of subversive repetition via web 2.0— the study reflects on the militantism of the hybrid world (Castells, 2017) and analyzes the aspects of pragmatic, interactional, enunciative, semantic-axiological, discursive, socio-semantic and political pragmatic of that discourse. It is concluded that the case of activism is anchored in techno-discourses (Paveau, 2021b) to produce a resignified discourse with revolutionary features, because by subverting massive techno-discourses, it strips its virtuosity, exposing a social wound of state negligence and allows it to produce both resistance and demands repair.