Historical clue formulations

• Pretty fishy — 2026-06-28
• Questionable, in slang — 2026-02-26
• Shady, in modern parlance — 2026-01-09
• Not on the up and up, slangily — 2025-12-23
• Shady, in modern lingo — 2025-06-17
• Dubious, in modern lingo — 2025-02-01
• Shady, in modern slang — 2024-07-03