Related Clues:

• Gaggle sound
• Hit the horn
• Use the horn
• Blow one's horn
• Blow a note
• Motorist's protest
• 'Out of my way!' indicator
• Horn's sound
• Gridlock noise
• Toy train sound
• Traffic noise
• Train sound
• Drinking spree
• "Don't you dare cross into my lane!"
• Driver's hello, maybe