Related Clues:

• Farm cry
• Pen chant
• Pen pal's response?
• Sow's squeal
• Arnold's comment on "Green Acres"
• Barnyard sound
• Sty cry
• Pig sound
• Pen sound
• Sty reply
• Pigpen peal
• Hoggish bellow
• Barnyard noise
• Porker's plaint
• Pen output