Last seen in:
Related Clues:
- Message spelled out with coconuts, maybe
- "Help! We're sinking!"
- Titanic call
- Signal from a marooned sailor
- Distress signal at sea
- Yachter's 'Help!'
- Tapped-out plea
- Mayday signal
- Nautical signal
- 'Help wanted' sign
- Only palindromic top-40 song title from a palindromic-name group
- Foundering signal
- Message that might be laid out in coconuts on a beach
- Either way, one is seeking professional help
- Signal officially replaced in 1999