This paper seeks to analyse the role played by the various formal dimensions of a critique in its effectuation. In order to do so, we draw on a set of different fieldwork studies, coordinated by a framework of typologies of these dimensions. On the one hand, we explore the critiques made by residents of a Rio de Janeiro favela concerning the power company that began to operate more intensively in the local area after installation of a Police Pacification Unit (UPP). On the other hand, we analyse how critiques can be operated in a joking way, both modulated – that is, continuously adjusted to avoid critical moments − and accusatory, as observed primarily in posters from the 2013 and 2014 political demonstrations that employed humour to mock the political situation of the country. This approach allowed us to understand the key elements of the critique-form, which in turn enabled us to design a typology of 15 relevant dimensions for the critique to be effectuated,– distributed between metamoral, aesthetic and logical dimensions.