This sound is widely shared online as a French reaction clip under the name The Kairi 78. The line became useful in meme edits because its delivery is so instantly recognizable: short, sharp and explosive. Creators use it the way others use a bruh or buzzer style reaction, especially when a video needs a sudden verbal shutdown. Its staying power comes from how easy it is to drop into roast edits, voice chat jokes and exaggerated argument scenes without needing extra context.