Magikarp is a fish-like Pokémon from Nintendo's Pokémon series, famous in the games and anime for being almost useless in battle until it evolves into the powerful Gyarados. Its short cry comes from the games, where each Pokémon has a distinctive electronic call, and fans have clipped and shared Magikarp's in particular because it fits the creature's reputation. Online, the sound spread through Pokémon memes, gameplay clips and soundboards, where it now works as shorthand for weakness, disappointment or a joke character arriving.