The Shadow Clone Jutsu is Naruto Uzumaki's signature technique from Masashi Kishimoto's Naruto manga and anime, which began airing in 2002. The sound of the technique — a rush of smoke and a popping burst — became one of the most recognisable anime sound effects of the 2000s. As clips of Naruto's clone jutsu spread through YouTube edits, AMVs, and later TikTok and meme soundboards, the effect evolved beyond fandom into a general-purpose audio cue for anything splitting, copying, or multiplying on screen, which is why it still appears in edits today.