The Pokeball is the capture device from Pokemon, introduced with the original games in 1996 and carried into the long running anime, films and trading card culture. Its opening sound became shorthand for catching and releasing a creature, repeated across generations of games and episodes until it was recognised far beyond the fandom. Online, the clip spread through soundboards and edits as a universal cue for summoning, catching or magically appearing, and it stays popular because a single pop instantly tells viewers what just happened without any explanation needed.