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.
Bile sludge: A mixture of microscopic particulate matter in bile that occurs when particles of material precipitate from bile. Bile is the fluid that is made by the liver. It is stored in the gallbladder until after a meal, when it passes out of the gallbladder and through the common bile duct into the intestine to help digest fat in the meal.