The exact origin of this short spit clip is not clearly documented, so it is best understood as a soundboard reaction rather than a line from a film or show. It circulates among short reaction noises that let editors answer something unpleasant without words, in the same family as Eww brother eww. Its appeal is its brevity: the sound is instantly recognisable as disgust, needs no translation, and can be dropped into memes, gaming videos, and reaction edits whenever a creator wants a fast, wordless rejection.