Mei is a Chinese climatologist hero introduced in Blizzard's Overwatch in 2016, and her ultimate ability, Blizzard, sends out a drone that freezes enemies in a wide area. The Mandarin voice line accompanies that ultimate in game, translating roughly as freeze, do not move, and it quickly became one of the most recognisable callouts among players. Clips of perfectly timed Blizzards spread across YouTube, Twitch and TikTok, and editors later lifted the short shout for reaction videos and memes, keeping it in use long after its original matches.