“…It is in this sense that metaphors have proved to be a powerful tool for social protest (Martín Rojo, 2014;Morales López, 2016;Pujante and Morales López, 2013;Romano, 2013Romano, , 2015Vivero, 2011), as they allow the compression and blending of the highly complex conceptual, cultural and evaluative meanings of a community in a very brief and efficient way. 2 Following the latest socio-cognitive work in metaphor studies, namely metaphorical creativity and recontextualization in real discourse situations (Cameron and Deignan, 2006;Kövecses, 2009Kövecses, , 2010Kövecses, , 2015Musolff and Zinken, 2009;Porto, 2012;Porto and Romano, 2013;Semino, 2008;Steen, 2011Steen, , 2014, as well as recent critical metaphor analysis (Charteris-Black, 2005Hart, 2010Hart, , 2014Soares da Silva, 2013Soares da Silva et al, 2017;among others), this article studies the origin and evolution of the marea ('tide') metaphor from a well-known conventional metaphor for multitude, mass of people, to its new, creative mappings within recent Spanish social protest movements (2011-2016). The article thus traces its development from a new image metaphor 3 representing the different groups of protesters (teachers, physicians, unemployed, librarians, miners, etc.…”