Sullage

1. n. Silt; mud deposited by water.
2. n. Drainage of filth; filth collected from the street or highway; sewage.
3. n. That which sullies or defiles.
4. n. The scoria on the surface of molten metal in the ladle.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.