The phrase is Russian, usually transliterated as krimiruite ee bystree from the spoken words kremiruyte yeyo bystreye, and it circulates online mainly as a standalone reaction sound rather than a traceable scene. Without a confirmed source clip, its spread comes from reposts on soundboards and short video edits where the urgent shouting is detached from context. It survives alongside other scream meme clips because the meaning hardly matters; the panic in the voice reads instantly, even for listeners who do not speak Russian.