clean out — If you clean out something such as a cupboard, room, or container, you take everything out of it and clean the inside of it thoroughly.
scrape — to deprive of or free from an outer layer, adhering matter, etc., or to smooth by drawing or rubbing something, especially a sharp or rough instrument, over the surface: to scrape a table to remove paint and varnish.
scour — to range over, as in a search: They scoured the countryside for the lost child.
flush — a hand or set of cards all of one suit. Compare royal flush, straight flush.
clean — Something that is clean is free from dirt or unwanted marks.