Playful signs in the city: Toward a semiotics of transgression in urban linguistic landscapes

Urban residents move through linguistic landscapes where public signage frequently produces unintended meanings through error, contradiction, or spatial interaction. While ordinary signs aim to regulate and inform, some generate irony or humor, which are termed “playful signs”. This study asks what playful signs reveal about the dynamics of language and space in the city. Drawing on online sources and off-line fieldwork, it develops an analytical framework with three progressive dimensions: inherent language flaws and ambiguities, meaning-making through visual arrangement, and dynamic interaction of text and space. These dimensions demonstrate that playful signs constitute a semiotics of transgression, which interrupts normative meanings while energizing urban semiotic ecologies. By positioning playful signs in geosemiotics, ecolinguistics, and metrolingualism, the study shows their sociolinguistic significance as accidental yet powerful practices that destabilize conventions and reimagine urban communication as a site of creativity. • Playful signs produce humor through linguistic error, visual misalignment, and context. • Urban signage generates transgression by disrupting intended meanings and norms. • A three-part framework reveals verbal, visual, and spatial dimensions of sign play. • Playful signs energize urban language ecologies and challenge communicative authority. • The study expands geosemiotics and metrolingualism through accidental urban creativity.