This sound is a generic crowd reaction effect rather than a quote tied to one famous character or scene. Online, creators use crowd booing as a universal shorthand for disapproval, especially in sports edits, meme reactions and comedy clips where someone flops publicly. Its staying power comes from how instantly recognizable it is: the audience hears the jeer and understands the joke in a second. It is often paired with exaggerated fail cues like SpongeBob Fail or a dramatic vine boom for extra emphasis.