Related Clues:

• Starting-gate sound
• Word from the pen?
• Shot at the bar
• Babe's greeting?
• Show disdain
• Stable noise
• Comment from the pen
• Contemptuous sound
• Hoggish comment
• Nasal laugh
• Utter a harrumph
• Emulate a horse, in a way
• Noisy exhalation
• Pigpen plaint
• Porcine protest