(a) Anything material that is considered foul, unclean, impure, or defiling; filth, dirt, mud, rubbish, trash, refuse; putrid or decomposed matter, ordure; squalor, vermin; -- also pl.; (b) a deposit……

(a) Of any object: to move more or less freely downward through space (from a higher to a lower position); to descend, drop, fall; of Lucifer and his followers: to fall (from heaven into hell); fallen……