Goku is the main hero of Dragon Ball, the manga and anime series created by Akira Toriyama, and his long power-up screams became a defining trait in Dragon Ball Z during his Super Saiyan transformations. Those extended roars were often paired with rising energy, shaking ground and glowing auras, and clips of them were shared widely online as anime fandom grew. Shortened into a standalone sound, the scream became a shorthand in edits and memes for going all out, powering up, or losing control in an exaggerated, over-the-top way.