Historical clue formulations

• Big laugh — 2026-09-03
• New ___ University of Knuckleheads (fictional institution where Leslie Nielsen lectured about the Three Stooges) — 2026-05-09
• Chortle — 2023-04-26
• ___ it up — 2023-02-24
• Laugh sound — 2022-06-22
• Hearty laugh — 2021-08-18
• Laugh for a corny joke — 2021-06-01
• Laugh like a Stooge — 2020-11-11
• Hearty laugh — 2017-11-21
• [Har har!] — 2017-10-03
• Joke, slangily — 2017-03-19
• Big laugh — 2017-03-13
• Chortle — 2016-09-11
• Guffaw — 2016-04-06
• Big laugh — 2013-07-15
• Good laugh — 2009-10-10
• Big laugh — 2008-09-02
• It's a laugh — 2008-05-18
• Three Stooges laugh — 2007-04-30
• Dumb laugh — 2006-10-05
• Big laugh — 2005-08-16
• Good laugh — 2004-06-06
• Good laugh — 2003-02-08
• Loud laugh — 2002-07-14