tubbing

noun6

1. •
   A bath taken in a tub.
2. •
   A lining of timber or metal around a mineshaft, which is watertight, used to safely penetrate quicksand, water, etc. It can be made of various materials, such as wood, concrete, or cast iron.
3. •
   A hazing ritual in which the victim's head is held underwater.
4. •
   The activity of rowing in crudely-made boats.
5. •
   The forming of a tub.
6. •
   Collectively, materials for tubs.