Related Clues:

• 'Ciao!'
• 'So long!'
• 'See ya'
• 'Cheerio!'
• Going away statement
• 'Ta-ta!'
• Socialite's 'bye'
• Word of parting
• 'Later, gator!'
• 'Toodles!'
• With 27-Across, holiday celebrators' farewell
• 'Catch you on the flip side!'
• ''So long, Sophia Loren''
• 'Catch ya later!'
• ''Ta-ta!''