day one

plural day ones

1. The very beginning.

   I've been with the project since day one.

2. USslangA close, longtime friend, one who has been around since the beginning.

   RONALD:”I look at you like a day one. Real talk.”

   2018 November 1, Ben Ketai, 23:00 from the start, in Start Up, season 3, episode 1, spoken by Ronald Dacey (Edi Gathegi)

   4 more examples

   Raise a cup up for all my day ones; two middle fingers for the haters […]

   2017 March 17, G-Eazy and Kehlani, "Good Life", from the soundtrack for The Fate of the Furious

   A very special thank-you to my brilliant band—especially my day ones, Jelly Bean Johnson and Monte Moir. We go back like rocking chairs. My main man Ricky Freeze Smith, Tori “Freak Juice” Ruffin, Thomas Austin, and Jeffery McNeely.

   2019, Morris Day, On Time: A Princely Life in Funk, Da Capo Press, →ISBN

   To my day ones: Jude Viaud, Roberto Franco, Antonio Wormley, and Jared Allen. The crazy times and memories that we all share together near and far will never be forgotten.

   2019, Keith Sarasin, Chris Viaud, Farmers Dinner Cookbook: A Story in Every Bite: A Story in Every Bite, Cider Mill Press, →ISBN, page 297

   Pistols was my dawg, my day one, my right hand, so I didn't ever want us to be out because of me not being able to keep my dick in my jeans.

   2019, Liv Reshelle, Dymond & Pistols: Forever & Always, Sullivan Group Publishing

1. At the very beginning; when something is entirely new.

   to buy something day one