This sound comes from the Undertale fandom, built around Sans, the laid back skeleton brother known for puns and surprising power in Toby Fox's 2015 role playing game. Clips repeating simple praise for Sans spread through meme edits and soundboards because the character has a huge online following far beyond the game itself. The exaggerated chant turns ordinary admiration into comedy, so creators reuse it for fan art showcases, sibling jokes and ironic hype moments where someone is treated like a legend for doing very little.
关于此声音
The So Cool sound is a funny Undertale clip repeating praise for Sans, used in meme edits, reaction videos and brother banter jokes every day.
This clip loops an excited voice chanting so cool over and over for Sans from Undertale, building from casual admiration into loud, stretched out shouting. The repetition is the joke, with the praise getting more desperate and over the top each time, including a sudden frustrated outburst before the final drawn out call of Sans's name. It sounds like an obsessed fan or teasing brother who cannot let the moment go. Viewers instantly get the mix of admiration, sarcasm and annoyance, which makes even a normal scene feel absurdly dramatic.
