Related Clues:

• Car-horn beep
• Parp
• Short sound of horn
• Sound a horn
• Taxi warning
• Jaywalker's warning
• Warning to a jaywalker
• Blast off for '19'
• Tugboat's greeting
• Warn with the horn
• Short horn blast
• Sound horn travelling to and fro
• Sound horn
• Palindromic blast
• Bout of barhopping