Historical clue formulations

• "Totally sick!" — 2025-06-13
• Off the hook, so to speak — 2023-10-26
• Wildly absurd, colloquially — 2022-04-18
• Not at all reasonable — 2022-01-05
• Off the deep end — 2019-01-04
• Certifiable, so to speak — 2018-12-23
• Absolutely harebrained — 2018-04-29
• Wild — 2016-01-10
• Wild — 2015-05-29
• "Off the hook" — 2014-12-14
• Moonstruck — 2013-01-06
• Bonkers — 2009-12-08
• Fruity — 2009-02-21
• Irreparably cracked — 2009-01-10
• Bonkers — 2008-10-01
• Out of one's mind — 2008-05-27
• Ready for the rubber room — 2007-06-19
• Nuts — 2006-05-03
• Certifiable — 2005-09-11
• Demented — 2005-02-01
• Bananas — 2005-01-16
• Totally out of the question — 2004-05-20
• Bonkers — 2003-12-21
• Ludicrous — 2001-12-15
• Cuckoo — 2001-02-07
• Crazy — 1999-08-02
• Wacky — 1998-06-24
• Loony — 1997-12-29
• Crackers — 1997-07-13
• Bonkers — 1994-09-07
• Loco — 1994-08-30
• Nuts — 1994-06-18