Padoru refers to a viral holiday meme featuring a chibi-style version of Nero Claudius from the video game Fate/Extra. The meme stems from a sequence in the game where Nero sings a Japanese parody of 'Jingle Bells' while spinning in a Santa outfit. Since appearing on the internet around 2011, it has become an annual tradition within the anime community, typically starting as early as September to signal the approach of Christmas. The phrase 'Padoru Padoru' is an onomatopoeic interpretation of the sound of reindeer hooves or a phonetic stylization of the word 'paddle.' It is used widely across social media and YouTube in various remixes and fan animations, cementing its status as the definitive anime Christmas anthem.