Last seen in:
Related Clues:
- Carbonaceous grime
- Challenge for Santa's dry-cleaner
- Pollutant that's a portmanteau
- Santa's suit stainer
- Visibility blocker
- Dirty stuff in a chimney
- Residue in a chimney
- Chimney dirt and grime
- Dirt and grime inside a chimney
- Black dust of a sort
- Combination of smoke and 4-Down
- Chimney liner
- Dust in a chimney
- Black chimney powder
- Fireplace blackener