Related Clues:
- What a dirty film!
- Despicable people on top
- Refuse to be followed by 3, say?
- Middle (reportedly) of desert
- Desolate area in Wild West
- Dirty froth
- People regarded as worthless, especially criminals
- Refuse - to get thin
- Spend to no purpose
- Floating waste
- Dregs of society
- Impurities floating on surface
- Impurities on liquid's surface
- Dregs (of society?)
- Blow - rubbish