To shovel muck.
To manure with 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.
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 turn into mulch.
To apply mulch.
Any material used to cover the top layer of soil to protect, insulate, or decorate it, or to discourage weeds or retain moisture.