[slʌdʒ], (Noun)

Definitions:
- thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process
(e.g: the dumping of sewage sludge)

- an unattractive muddy shade of brown or green
(e.g: a sludge green)

- sea ice newly formed in small pieces


Phrases:

Origin:
early 17th century: of uncertain origin; compare with slush