The phrase is everyday Russian slang built from an attention grabbing hey and a vulgar instruction to leave, which explains why the clip works even for viewers who do not speak Russian. Short Russian reaction clips like this circulate on soundboards and in chat groups because the delivery carries the meaning through tone alone. It has become a reusable shorthand for irritation and rejection in edits, gaming lobbies and meme compilations, where a one second voice line can replace a longer explanation or argument.