Historical clue formulations

• Behave like an ass — 2026-03-14
• Donkey's call — 2024-09-23
• Sound like a real jackass — 2023-08-20
• Neigh : horse :: ___ : donkey — 2023-04-03
• Donkey sound — 2022-07-19
• Speak loudly and harshly — 2021-12-18
• Coarse farm sound — 2021-01-24
• Burro's call — 2018-04-08
• Hee-haw — 2017-07-18
• Sound like a jackass — 2017-03-15
• Act like a jackass — 2014-08-02
• Jackass's sound — 2011-05-31
• Donkey's cry — 2011-05-15
• Barnyard call — 2009-05-10
• Farm call — 2006-08-04
• Harsh call — 2005-07-24
• Burro's cry — 2003-07-30
• Act like an ass — 2003-01-02
• Farm call — 2000-04-02
• Barnyard cry — 1996-11-14
• Sound like an ass — 1996-10-19