The phrase comes from Dutch, where buurman means neighbour and goed plan means good plan, and the clip circulates in Dutch meme and soundboard spaces as a short reaction line. Its exact original source is not widely documented, so its spread is tied more to reuse than to a single show or creator. Dutch speakers share it for instant approval, while non Dutch audiences use it for its deadpan sound alone. That mix of a clear meaning at home and a funny, blunt delivery abroad keeps it in rotation.