We call that "Assquake".
download: SlimyLightgoldenrodEarthworm.mp4
original: https://www.redgifs.com/watch/SlimyLightgoldenrodEarthworm
We call that "Assquake".
download: SlimyLightgoldenrodEarthworm.mp4
original: https://www.redgifs.com/watch/SlimyLightgoldenrodEarthworm