Abstract: We´ve presented results from a study that aimed, mostly, reflect about the use of creative anthroponyms on Facebook. To support the discussion, we used, as theoretical north, Cognitive Linguistic, dialoguing with authors such as Lakoff (1987), for comprehending that metonymy supports the creation of these anthroponyms. Moreover, considering the interdisciplinary nature of this area, we have brought Bauman (2005), for the discussions, because we understand that liquid modernity also interferes with its use, as we dialogue with Damásio (2011), because we believe that emotions generate them. In the methodological scope, we adopted the qualitative and hermeneutical approach of the corpus, which, for its part, was constituted by anthroponyms collected from said social network. We established three categories of study: Conventional metonymy; Unconventional metonymy and anthroponymy, emotion, identity and liquid times. We conclude, among other results, that metonymy is, in fact, the mechanism that structures this anthroponymy and that women are more prone to its use.