Jean-Pierre Coffe was a French food critic and broadcaster who built his reputation defending traditional cooking and attacking industrial, low quality food with theatrical honesty. His phrase mais c'est de la merde became his signature catchphrase on French television and radio, repeated in compilations and parodies long after the original broadcasts. Online, the short version escaped its culinary context and turned into a universal French reaction for anything badly made. French speakers use it as a meme verdict, while international audiences recognise it purely from the furious delivery.