The exact origin of this clip is unclear, but it has circulated online as a short anime-adjacent reaction sound for edits, reposts and meme compilations. It spread because the phrase is instantly recognizable, easy to loop and funny in both sincere and ironic contexts. Creators commonly use it in the same corners of the internet as sounds like onii-chan, onii-chan, where exaggerated affectionate delivery is part of the joke. Its staying power comes from how quickly it can signal flirting, cringe or parody.