Related Clues:

• South-of-the-border sayonara
• Farewell, in 29-Across
• ''So long'' somewhere
• "Later!"
• "So long"
• Splitting words
• ''So long!''
• Southwestern sign-off
• "Toodles!"
• Pedro's parting word
• Casual goodbye
• Tampico toodle-oo
• ''Goodbye'' somewhere
• "Bye!"
• Chihuahua ciao