This sound is used online as a Sukuna reaction clip tied to Jujutsu Kaisen, where short anime voice lines often get clipped into meme edits and soundboards. Fans use “bakana” for moments of disbelief, failed intimidation or sudden reversals, especially in battle edits. Its appeal comes from how quickly it communicates shock in a recognizable anime style. It remains popular because even people who do not know the exact scene still understand the emotion immediately, much like other widely shared anime reaction sounds.