Dirt or grime; any vague, messy, or unknown substance.
A member of the gunk subculture.
A subculture of 21st century American males, combining elements of modern gothic culture with punk rock.
To soil or make dirty
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.