waterbag means A bag for carrying water. Lexicurio rates it Sui generis — a strength score of 91 out of 100.
Etymology
From water + bag.
noun
- A bag for carrying water.“Who'll come a'waltzing Matilda my darling
Who'll come a'waltzing Matilda with me
Waltzing Matilda and leading a water-bag
Who'll come a'waltzing Matilda with me.”
- The bag-like compartment in a camel's hump in which the animal was once believed to store water; in fact it is fatty tissue.