Mario's short jump and celebration shouts come from Nintendo's long running Mario Bros game series, where the character's voice has been used for movement and success moments for decades. As short form video grew on platforms like TikTok, players and editors began lifting these tiny vocal bursts out of gameplay and reusing them as standalone reactions. The iwihoo spelling reflects how fans hear and search for the cheer online. It stays popular because it is instantly linked to Mario, needs no context, and fits almost any playful jump or win.