The phrase comes from De Luizenmoeder, the Dutch comedy series set around a primary school that first aired in 2018 and became known for painfully recognisable parent and teacher moments. Its short, quotable lines spread easily as soundboard clips and chat reactions in the Netherlands and Flanders. This one stuck because it captures the show's mix of everyday logic and social awkwardness in a single sentence. Dutch speakers still drop it whenever food, health claims or schoolyard rules come up in conversation online.