Hollow Purple is Satoru Gojo's signature technique in Jujutsu Kaisen, created by combining his Limitless abilities, and the 200% version represents him pushing it far beyond its normal output. The sound became popular as anime edits and fight compilations spread the moment online, where fans clipped the charge and blast to mark peak power scenes. It remains widely used because it instantly signals an unbeatable character going all out, making it a shorthand for overwhelming strength in memes, edits, and reaction videos.