Related Clues:

• Unpleasant substance
• Vulgar material
• Disgusting deposit
• Disgustingly foul substance
• Repulsive dirt
• Skiing slang for gluey half-melted snow
• Slimy muck (sl.)
• Dirtiness
• Police corruption
• Gooey muck
• Nasty buildup
• Accumulated muck
• Mostly offensively coarse nonsense
• Caked-on dirt
• Gross muck