Related Clues:

• Sound of an empty stomach
• Traffic problem
• Emulate an empty stomach
• Doberman's warning
• Snarl
• Rush hour problem
• Greeting from Spike
• Warning before a bite, perhaps
• Sound from a boxer
• Canine warning
• Bottleneck
• Hair problem
• Traffic congestion
• Watchdog's greeting
• Terrier's audible warning