Kweleblop circulates as a short user-uploaded soundboard clip with no clear original source, which is common for nonsense meme sounds named after how they sound. The title imitates the blop itself rather than referencing a character or show. It spread through meme edits, Discord servers and short video platforms where creators keep a library of random reaction noises ready to drop in. Its appeal is its meaninglessness — it does not explain the joke, it just makes a moment feel stranger, which keeps it reusable across many different contexts.