The clip comes from Russian internet slang, where blya is a common swear word used much like an exasperated sigh. Repeated three times as bliabliablia, it turns into the Russian equivalent of blah blah blah, signalling that someone is fed up with hearing or saying the same thing. That simple idea made it easy to share as a short reaction sound on soundboards and in chats, edits and memes, where language is not a barrier because the tone alone communicates irritation, disbelief and mocking dismissal instantly.