The phrase comes from the everyday Russian word poka, the informal way to say bye, and repeating it three times turns a normal farewell into a playful, exaggerated send-off. As a short clip it circulates online as a reaction sound for endings, departures and light-hearted dismissals, where its rhythm does most of the work even for people who do not understand Russian. That simplicity is why it keeps appearing in edits and messages: it is instantly clear, easy to drop at the end of a scene, and it makes leaving feel like a joke rather than an abrupt stop.