Related Clues:

• Pen with no ink
• Eye ailment
• Wallower's whereabouts
• Trough site
• Place for shoats
• Unkempt place
• Filthy pen
• Pen name?
• Farm sight
• Pen pal's locale?
• Place to pig out?
• Hole
• Filthy place
• Porker pen
• Spot for a mud bath?