Historical clue formulations

• Good pal — 2026-07-05
• Broski — 2024-01-21
• Compadre — 2023-02-05
• "___ the Clown" (classic episode of "The Simpsons") — 2021-11-10
• Bud — 2021-10-08
• Good friend, informally — 2016-05-01
• Buddy — 2015-05-31
• Bro — 2015-05-22
• Brother, in slang — 2014-08-17
• Bro — 2010-06-06
• Friend in the hood: Var. — 2009-10-07