Historical clue formulations

• Smears with goo — 2026-08-04
• Covers in goo — 2023-08-21
• Covers with goo — 2020-12-06
• Covers in goo — 2018-04-19
• Covers with goo — 2014-07-13
• Attacks à la "Ghostbusters" — 2013-09-03
• Smears with gunk — 2013-08-19
• Besmears — 2010-07-09
• Slanders really badly — 2009-10-01
• Covers with gunk — 2004-08-25
• Attacks à la "Ghostbusters" — 2001-05-18
• Lowlifes — 2000-06-03
• Smothers with muck — 1996-06-01