Gintoki is the lead character of the long-running Japanese comedy series Gintama, while Doraemon is the blue robot cat from the classic Japanese manga and anime of the same name, so putting the two names together immediately signals an anime crossover joke to fans. Short clips like this circulate through meme edits, reaction videos and soundboards, where a familiar character pairing can carry a joke without explanation. Its five-second length makes it easy to drop into edits, and that blend of nostalgia and absurd contrast keeps it useful for creators making anime humour.