Related Clues:

• Traffic jam noise
• Vain claim
• Gander's message
• Blowhard's offering
• Traffic sound
• Show impatience in traffic
• What's expected
• Gaggle sound
• Put one's feat in one's mouth
• 'Look, ma, no cavities!,' e.g.
• Hit the horn
• Gridlock sound
• Blow one's horn
• Motorist's protest
• 'Out of my way!' indicator