Last seen in:
Related Clues:
- Whistle blast
- Response to being held up, maybe
- Driver's nonverbal 'hello'
- Tugboat noise
- Traffic complaint
- Goose's sound
- Short blast of a whistle
- Train-whistle sound
- Whistle-blower's sound
- Tugboat's call
- Warning from a driver
- Start of many a bumper sticker
- Whistle-blowing outcome?
- Old-timey horn sound
- Do it on a flute