Related Clues:

• Junky stuff
• 'Oh, phooey!'
• Gooey dirt
• Caked deposit
• 'Oh, darn!'
• Like Uncle Buck, in 'Uncle Buck'
• Icky, sticky stuff
• "Oh, shoot!"
• Disgusting buildup
• Disgusting stuff
• Largely unrefined filth
• It's nasty, brutish, short
• Slimy, oily or dirty substance
• Unpleasantly messy substance (informal)
• Sticky residue