Related Clues:

• Palindromic blast
• Gaggle sounds
• Bout of barhopping
• Jam sound
• Gridlock sounds
• Road rage sound
• Brief blast on a horn
• Cutie
• ___ & the Maytals
• Warning by driver heading left or right
• Traffic chorus
• Plays a flügelhorn
• Not quite horn blasts
• With 18-Across, what a boastful guy might do
• Model train sound