Possible Clues:

• Bye-bye!
• 'So long!'
• Excessively, party detains House so long
• Goodbye
• Into the bargain, lost dole by going to job centre? That's some parting shot!
• "Ta-ta for now!"
• "Ta-ta, everyone!"
• "See ya!"
• See you! (informal)
• See you excessively hugging dog with no lead