What is wattle and daub?

a material formerly or traditionally used in building walls, consisting of a network of interwoven sticks and twigs covered with mud or clay.

Explanation:

its a material used in construction. wattle and daub is a composite building method used for making walls and buildings, in which a woven lattice of wooden strips called wattle is daubed with a sticky material usually made of some combination of wet soil, clay, sand, animal dung and straw.