Its latin term is Urechis unicinctus. Urechis unicinctus is a species of marine spoon worm.
It is not defined in English officially. However, they are unofficially known as the "Penis Fish" due to their resemblance to male genitalia, though not necessarily human.
This name is a misnomer due to the fact that they are neither penises nor fish. unicinctus, like other Urechis, live in burrows in sand and mud. This is commonly eaten raw in China, Japan and especially Korea. .