Any debris or fragments of disintegrated material.
Organic waste material from decomposing dead plants or animals.
Pieces of rock broken off by ice, glacier, or erosion.
Anything filthy or vile. Dirt; something that makes another thing dirty.
Heroin.
Semen.
Soft (or slimy) manure.
The pile of discarded cards.
Grub, slop, swill
Slimy mud, sludge.
To manure with muck.
To shovel muck.
To vomit.
To do a dirty job.
To pass, to fold without showing one's cards, often done when a better hand has already been revealed.