noun, feminine/madɾileɲoˈfobja/
fear, hatred of, hostility or discrimination against Madrid, Madrilenian people or culture
“La madrileñofobia es un discurso rentable en aquellas regiones que, en vez de mirar hacia fuera para competir y crecer, se miden sólo con Madrid.” — Madrilenianophobia is a profitable discourse in those regions that, instead of looking outwards to compete and grow, compare themselves only to Madrid.
From madrileño + -fobia.