“Stiy! TCK!” circulates online as a short Ukrainian meme shout tied to jokes about being stopped unexpectedly, especially in regional social media edits. The clip is mainly shared for its instantly recognizable command-like delivery rather than for a widely credited film or TV source. Its popularity comes from how quickly it sets up a joke: one sudden yell, then a cut to panic, running or a guilty reaction. That simple structure keeps it useful in meme compilations, prank audios and short-form video posts.