earth-carrying boat; mud barge
A boat or barge used for transporting soil, sand, or earth, typically in construction or dredging contexts.
At the construction site, an earth-carrying boat is transporting soil.
mud boat (in folktales)
A boat made of mud or clay that appears in Japanese folktales, often with a moral about fragility or foolishness. Compare 泥舟 (どろぶね).
See also: 泥舟
Mud boats in old tales often dissolve in water.
Compound of 土 (つち, 'earth, soil') and 船 (ふね, 'boat'). The reading つちぶね is a straightforward kun'yomi combination.