The phrase behind this clip comes from Persian internet slang, where kos sher is used as a blunt way to label talk as nonsense. Because the wording is short and instantly recognisable to Persian speakers, it works well as a reaction sound in short videos and shared clips, even when viewers do not follow the rest of the conversation. Its appeal is not a single famous scene or creator, but the everyday feeling it captures: calling out something that sounds hollow, exaggerated, or made up. That broad, reusable dismissal is why it keeps circulating as a quick audio reply.