LOUD is a Brazilian esports and entertainment organisation founded in 2019 that built one of gaming's largest fan bases through Free Fire, League of Legends and Valorant. In Portuguese, trem bala means bullet train and is also slang for someone moving too fast to stop. Fans and editors adopted the phrase as a hype tag for LOUD plays and entrances, spreading short clips across gaming videos and social posts. Its appeal is simple team pride and speed, which keeps it useful far beyond one match or roster.