Related Clues:
- Track warning
- Obama's grandma
- It may precede a message
- When repeated, Road Runner's call
- Kin to a honk
- Sign of traffic impatience
- Beetle's warning
- Microwave sound
- Cornet note
- Tugboat greeting
- Obama's grandma (nickname)
- Sound heard during gridlock
- Part of a city street's cacophony
- Obama nana
- Blast on a horn