I don’t know much about this video. It shows the aftermath of a fatal traffic accident. A young woman was crushed to death and twisted out of shape when she was run over by a truck.
There’s her flip flop on the road next to the smear. Her midsection was crushed to the point of disintegrating, leading to the separation of her upper body from her lower body. There are some Chinese characters in parts of the video, leading me to suspect it happened in China or Taiwan.
Props to Best Gore member @momox for the video: