Online, gub gub is treated as a short, repeatable meme sound rather than a line from a film or show, and it is most often searched alongside cat content. Its appeal comes from how easy it is to reuse: the phrase is short, instantly recognisable after one listen, and works without any context or setup. Creators drop it into pet compilations, reaction videos, and short-form edits where a quick burst of silliness is enough to carry the joke. Because it does not depend on a specific scene, it keeps circulating whenever a new funny animal moment needs a voice.