This sound is associated with Goku, the main character of the Dragon Ball franchise created by Akira Toriyama, and especially with the loud power-up screams heard in Dragon Ball Z. Online, these yelling clips spread through anime fan edits, meme compilations, reaction videos, and short-form posts where creators use them to signal extreme effort or dramatic escalation. It remains popular because even people who have not watched the series recognize the over-the-top Super Saiyan energy and instantly understand the joke or hype.