Related Clues:

• Babbles on
• Runs up a big phone bill, in a way
• Goes on and on on the phone
• Tibetan herd members
• Shaggy bovines
• Chitchats
• Runs up the phone bill
• Himalayan bovines
• Talkative bovines?
• Asian bovines
• Ties up the phone, say
• Flaps one's gums
• Uses up minutes, in a way
• Blabbers
• Talks idly