Historical clue formulations

• Apt cry of encouragement for a geologist? — 2023-06-23
• Comment with the pinkie and forefinger extended upward — 2017-11-02
• "All right, dude!" — 2010-12-10
• "Way to be, man!" — 2010-11-05
• "Way to go, dude!" — 2007-10-26