Related Clues:

• Well-ventilated
• Like old socks, maybe
• Full of holes
• Like Swiss cheese
• Moth-eaten
• Sievelike
• Not likely to hold water
• Honeycombed
• Like Swiss
• In need of a washer, perhaps
• In need of caulking, as a boat
• Faulty, as a faucet
• In need of caulking
• Needing caulking
• In need of fixing, roofwise