jordflug
Jordflug is a term derived from Old Norse, literally translating to "earth-fleeing" or "ground-flying." It is not a recognized scientific or zoological term but is sometimes used in folklore and speculative fiction to describe a hypothetical or mythical creature that possesses the ability to move through solid earth as if it were liquid. This ability is often depicted as a form of burrowing far beyond the capabilities of known animals, allowing the creature to travel at significant speed and depth beneath the surface.
The concept of creatures that can phase through solid matter, particularly earth, appears in various mythologies