Medb is a queen from Irish legend who appears as a Servant in Fate/Grand Order, the popular mobile role-playing game, where her confident and flirtatious personality made her a fan favourite. The repeated suteki line, a Japanese word for something wonderful, was clipped from her voice lines and shared by players and editors as a short reaction sound. It spread through gameplay videos, fan edits and meme compilations, and it remains in use because it instantly signals playful admiration without needing any context from the game.