Mulj
Mulj is a term that can refer to several different concepts, often related to a thick, viscous substance. In geology, mulj may describe a type of soft, unconsolidated sediment found at the bottom of bodies of water, such as lakes or oceans. This sediment typically consists of fine particles of silt, clay, and organic matter, and can accumulate over long periods. The consistency of mulj in this context can vary, but it is generally characterized by its fluid or semi-fluid nature.
In a more colloquial sense, mulj can be used to describe any thick, muddy, or sludgy material.