Rabbit Hole was released in 2023 by Japanese Vocaloid producer DECO*27, featuring virtual singer Hatsune Miku. The song quickly spread beyond Vocaloid fandom after fan-made animated videos and edits reused its most infectious section across social platforms. Its rapid circulation turned the excerpt into a recognizable shorthand for hyperactive anime humor online. Short clips continue to circulate because the melody is identifiable within seconds, works as a loop, and carries a long history of remixes, parodies, and character animations attached to the original track.