The word Jangpung comes from Korean martial arts fiction, where it describes a powerful palm strike that sends out a blast of wind. In Korean action stories and comics, the technique is a shorthand for overwhelming force delivered without a weapon. Online, the name has become a label for that rushing wind-blast effect itself, and creators reuse it in fight compilations, parody battles and reaction edits. It stays useful because the sound is instantly readable: one burst signals power, speed and a decisive hit.