In Italian football slang, 'scudetto di cartone' is a long-running insult aimed at a league title seen as illegitimate, most famously linked to the 2006 Serie A title reassigned after the Calciopoli scandal. Juventus supporters use the label against Inter, while other fanbases adapt it for any disputed championship. The chant form spread through stadiums, ultras videos and social clips, becoming a portable meme for dismissing a rival's success. Its longevity comes from that flexibility: any controversial win can be branded cardboard.