Historical clue formulations

• Hard to swallow, in a way — 2022-05-11
• Like poisonous mushrooms — 2009-08-26
• Like mudpies and wax fruit — 2006-05-04
• Like Osage oranges — 2002-02-03
• Spoiled — 2000-06-23
• Worse than awful, foodwise — 1998-06-15
• Bad — 1995-06-29