Possible Clues:

• 'Farewell, Francisco'
• 'Later, amigo!'
• ''Goodbye, amigo''
• No malice in social media in Spain? Good luck to you with that one!
• Spanish ''goodbye''
• Spaniard's sign-off
• See you in the Sierra Madres
• Word of farewell
• Word on the way out
• Tampico toodle-oo