Historical clue formulations

• Some back-and-forth — 2026-08-15
• Witty banter — 2023-03-20
• Badinage — 2011-05-11
• Back and forth — 2006-06-09
• Verbal dueling — 1998-01-25
• Banter — 1997-02-26
• Clever conversation — 1996-11-28