The title means spell or incantation in Japanese, and the clip is searched for alongside Jujutsu Kaisen, the manga and anime series about jujutsu sorcerers who fight curses using cursed techniques. In that world, spoken incantations and hand signs can strengthen a technique, which is why chanting sounds became a shorthand in fan edits. As the series grew popular online, short chant clips were ripped for soundboards and short videos, where the sound alone signals a cursed technique is about to be used, even without any footage from the show.