Tidus is the main character of Final Fantasy X, the role-playing game released by Square in 2001, and his laugh comes from a famous scene where he and Yuna try to laugh on command to lift their spirits. The moment became widely shared online because the performance sounds so deliberately unnatural, and clips of it circulated on YouTube, forums, and later TikTok as a shorthand for awkward enthusiasm. Fans of the game still recognise it instantly, which keeps it in regular use in edits, streams, and parodies more than two decades later.