Related Clues:

• ''See ya later!''
• ''Bye-bye''
• "Later, dude!"
• ''I'm history!''
• 'I'm out'
• Bye words
• Brit's farewell
• Not as timely
• Kid's response to 20-, 37- and 55-Across
• Conversation closer
• Ciao
• Adieu, elsewhere
• ''Bye-bye,'' elsewhere
• Parting comment
• Delaying response