The phrase comes from spoken Ukrainian, where zdarova is a casual hello and tvaryna means animal or creature, so together it works as a deliberately rude, joking greeting between people who know each other. Short voice clips of everyday phrases like this spread easily in chats and short videos because the meaning is clear even from tone alone. It has become a reusable reaction for entrances, surprise appearances and mock aggressive hellos, especially in gaming and friend group contexts where an over the top greeting is funnier than a polite one.