Cachou Lajaunie was created in Toulouse in 1880 by pharmacist Léon Lajaunie, originally as a small pastille combining cachou extract, licorice and mint. The brand became a French household name, recognised by its small yellow metal box and its long-running television and radio advertising. Short clips of its sung slogan have circulated online as nostalgic soundboard sounds, shared by French users who remember the commercials from childhood. Its brevity and instantly identifiable sung name keep it in use for retro humour and French advertising references.