This phrase comes from everyday Russian speech, where “chto sidish, idi” is a familiar, slightly rude way to tell someone to stop sitting around and move. As a soundboard clip, it circulates mainly among Russian-speaking meme communities, where short commanding voice lines are reused as reaction sounds. Its appeal is practical: the meaning is instantly clear even to non-speakers from the tone alone, and the six-second length fits neatly over gaming fails, lazy pet videos, and procrastination jokes. That directness keeps it in rotation for hurry-up memes.