Boue.
ETYM Old Eng. filthe, fulthe, AS. fileth;, from fűl foul; akin to Old High Germ. fűlida. Related to Foul, File.
A state characterized by foul or disgusting dirt and refuse; SYN. filthiness, foulness, nastiness.
A soft wet area of low-lying land that sinks underfoot; SYN. quagmire, morass.