The Kamehameha comes from Dragon Ball, the manga and anime series created by Akira Toriyama, where it is the signature energy attack taught by Master Roshi and most famously used by Goku. The technique became one of the most recognisable moves in anime as the series spread worldwide through television, video games and merchandise. Online, the shouted name and charging sound became shorthand for a dramatic power-up, reused in edits, parodies and reaction videos long after the original episodes aired, keeping it familiar to new generations of fans.