Related Clues:

• Tide target
• Cleaner's target
• Smutch
• Garage buildup
• Soot
• Tough laundry problem
• Mr. Clean target
• Greasy dirt
• Ugly buildup
• Pine-Sol target
• Gross accumulation?
• Ingrained dirt
• Dirt, grease
• Although it's dirty, Gee, how white it is!
• Cleaning challenge