This clip is best known online as a generic anime “baka” sound rather than a clearly documented line with a confirmed source. It spread through short meme edits, anime compilations, and reaction videos where creators use it as a quick teasing insult or flustered outburst. Its staying power comes from how recognizable the word is even to casual anime viewers and how easily the exaggerated delivery fits comedy timing. It often appears alongside other anime reaction sounds such as anime ahh or Onii-chan, onii-chan in playful edits.