The line comes from the STALKER games, where bandits are known for their rough, memorable Russian dialogue and confrontational attitude toward the player. This particular phrase, roughly meaning that something is not the right thing and the speaker is not being told the truth, became a favourite among Russian-speaking players and meme creators for its blunt, streetwise delivery. It spread through gameplay clips, edits and soundboards, where it is now used far beyond its original context as a quick, funny way to reject a claim, expose a bluff or shut down a bad idea.