This clip has no widely documented original source, and it appears to circulate mainly as a short user-shared reaction sound rather than as a line from a named film, show or creator. Its appeal comes from the phrase itself, a blunt Czech expression of disbelief that works even for listeners who only catch its tone. Online, it is mainly dropped into memes, gaming moments and short-form videos where a quick, exasperated reaction is needed, and its brevity makes it easy to loop, subtitle or place over a sudden twist.