Related Clues:

• It's full of fiber
• Navel-gazer's discovery, maybe
• On-screen collection
• What some screens catch
• It's trapped in a dryer
• Belly button gunk
• ___ roller (cat owner's tool)
• __ roller
• Trap collection
• Fuzzy bellybutton stuff
• Trapped fluff
• Dryer by-product
• Dryer trap stuff
• Belly button fuzz