Kasane Teto began in 2008 as an April Fools joke character presented as a new Vocaloid, before becoming a popular UTAU voicebank in her own right. Her red twin drills and cheerful synthesized voice made her a staple of anime meme edits for years. Short isolated words in her voice, like this Oreo clip, spread on soundboards and short video apps because they work without context. Fans drop the single word into unrelated scenes, and the recognisable Teto timbre carries the joke even for viewers who only know her from memes.