The sound traces back to the Pluto short The Legend of Coyote Rock, released in 1945, where bulb-horn style squeaks suited the cartoon's broad slapstick timing. The same style of effect was later catalogued by Hollywood Edge as a short, funny nose-blow or bulb-horn sound, which helped it circulate beyond its original cartoon. Online, creators have kept it alive as a quick punchline for clumsy entrances, silly reveals and lighthearted pranks, because a squeaky horn still reads instantly as comedy without needing any words.