Possible Clues:

• Compactness, stupidity
• Studies something with unknown thickness
• Concentration, compactness
• Compactness - stupidity
• Such obtuseness can be relative
• Sit surrounded by refuse - there's stupidity for you!
• Concentrated condition as of fog
• Refuse to hold pose — demonstrating stupidity
• Refuse to accept position? That shows foolishness
• Boozer's body found in squat, covered in refuse