In the art world, it is fostered by an incessant rain of numbers in the media whenever an art star comes to its attention. Graffiti Artists Turn on Banksy: The Rise of Art Hate Anthony Haden-Guest August 6, 2014
For the music genre, see Sludge metal. Sludge. Sludge is a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes or as a settled suspension obtained from conventional drinking water treatment and numerous other industrial processes.
Definition of slough. 1  1a : a place of deep mud or mireb or less commonly slew or slue \ËslÃ¼\ (1) : swamp (2) : an inlet on a river; also : backwater (3) : a creek in a marsh or tide flat. 2  2 : a state of moral degradation or spiritual dejection.