Related Clues:

• Dentist's occupational hazard
• It's out of the mouths of babes
• Drool
• Show hunger
• Talk nonsense
• Emulate Pavlov's dogs
• Show eager anticipation
• Exhibit extreme anticipation
• Be gaga (over)
• Have a hungry reaction
• What hungry wolves do
• Show hunger, in a way
• Mouth watering?
• Be overly avid
• Evince envy