a : something that is formed by casting in a mould or variety: which include (one) : a replica (as of the statue) in metallic or plaster : casting (2) : a fossil copy of the details of a natural item by mineral infiltration b : an effect taken from an item that has a liquid or plastic material : mildew They created a mask from a wax cast of her face.
off the despair scrap and junk suggest throwing away or breaking up as worthless in existent variety.
discard indicates the this site permitting go or throwing away of something which happens to be useless or superfluous however often not intrinsically valueless.