This clip is credited to Disney's 1945 Pluto short Canine Casanova, where Pluto's cartoon romance needed a sound bigger than a real kiss. It later circulated as a Hollywood Edge stock effect, catalogued as a funny wet smacky kiss, which let editors reuse the same squeaky smack far beyond its original cartoon. Because the effect is so short and instantly readable, it has stayed useful for animation, meme edits and short-form comedy, where a single exaggerated kiss can sell a joke without any dialogue or explanation.