Excalibur takes its name from the legendary sword of King Arthur, a weapon anime and games often treat as the ultimate holy blade, with characters shouting its name to unleash its power. The drawn out version became popular in soundboards and edits because the extended yell is instantly recognisable even without video. Fans pair it with sword swings, laser beams and mock serious power ups, and the joke relies on treating something minor as a legendary attack. It remains used wherever an exaggerated finishing move needs a familiar anime cue.