To do a dirty job.
To manure with muck.
To shovel muck.
To vomit.
To pass, to fold without showing one's cards, often done when a better hand has already been revealed.
Heroin.
Semen.
Soft (or slimy) manure.
The pile of discarded cards.
Anything filthy or vile. Dirt; something that makes another thing dirty.
Grub, slop, swill
Slimy mud, sludge.
To cut with a sickle.
Of red blood cells: to assume an abnormal crescent shape.
To deform (as with a red blood cell) into an abnormal crescent shape.
Shaped like the blade of a sickle; crescent-shaped.
Any of the sickle-shaped middle feathers of the domestic cock.
An implement having a semicircular blade and short handle, used for cutting long grass and cereal crops.