Duke Fishron is a powerful optional boss in Terraria, summoned by fishing in the ocean biome with a Truffle Worm as bait. Its defeat marks a major milestone for many players, because the fight is fast, chaotic and unusually punishing for its stage of the game. Clips of its death sound circulated through Terraria gameplay videos and soundboards, where creators reused it outside its original context as a shorthand for a dramatic boss kill. It remains popular because it is instantly recognisable to Terraria fans and short enough to drop into edits without slowing them down.