Historical clue formulations

• Fume — 2025-04-04
• See red — 2024-09-15
• Be quietly furious — 2024-01-22
• Be steamed — 2024-01-20
• Be hot under the collar — 2024-01-15
• Boil — 2023-08-19
• Feel like [grrrr] — 2022-11-20
• Keep one's anger at a low boil — 2021-11-16
• Stew, steam or boil — 2021-06-08
• Be quietly angry — 2021-05-05
• Boil — 2020-01-10
• Boil — 2019-01-20
• Not quite blow — 2018-10-13
• Boil — 2018-07-14
• Get mad — 2016-03-17
• Be furious — 2015-12-24
• Be ready to explode — 2015-04-04
• Be hot under the collar — 2014-05-12
• Do a slow burn — 2012-11-12
• Do a slow burn — 2011-04-27
• Boil — 2006-11-19
• Be really mad — 2006-04-03
• Burn up — 2005-07-03
• Fume — 2005-06-26
• Do a slow burn — 2002-03-10
• Burn — 2001-10-29
• Boil — 2001-02-13
• Boil — 2000-09-15
• Boil and bubble — 1999-11-10
• Churn — 1998-08-10
• Do a slow burn — 1998-03-17
• Stew — 1997-06-11
• Stew — 1997-06-01
• Have underlying anger — 1996-05-14
• Barely conceal one's anger — 1996-04-15
• Stew — 1995-10-06
• Breathe fire and fury — 1995-03-19
• Boil — 1994-07-25