tubbing

The forming of a tub.

Collectively, materials for tubs.

A bath taken in a tub.

A lining of timber or metal around the shaft of a mine, especially a series of cast-iron cylinders bolted together, used to enable those who sink a shaft to penetrate quicksand, water, etc., with safety.

A hazing ritual in which the victim's head is held underwater.

The activity of rowing in crudely-made boats.