Booing crowd audio has been a staple reaction sound for years across short-form videos, compilations and gaming edits. Rather than pointing to one single viral source, creators use this kind of clip as a universal shorthand for rejection, embarrassment or public failure. It appears in meme culture anywhere a joke needs instant negative feedback, often alongside other canned reaction sounds such as badum tss or Oh Brother, This Guy Stinks!. Its staying power comes from how quickly listeners understand the emotion without needing any extra context.