Related Clues:

• Yaks
• Shaggy oxen
• Schmoozes
• Big bovines
• Talks one's ear off
• Ties up the phone
• Goes on
• Beasts of burden
• Goes on and on and...
• Won't shut up
• Talks nonstop
• Confabulates
• Tibetan herd
• Goes on and on
• Talks a blue streak