bestie

plural besties

1. informalA best friend.

   On the way home, I got a joke text from my bestie.

   2009, Keleigh Crigler Hadley, Preacher

   4 more examples

   You're supposed to be my bestie, Mel. We used to tell each other everything. So what's this Toby secret you can't tell me?

   2007, Brigid Lowry, Things You Either Hate Or Love

   Even back then, a party just wasn't a party without my bestie, and I was miserable for the last eight frames.

   2008, Julie Kraut, Shallon Lester, Hot Mess: Summer in the City

   Gave me a cryptic, mostly frustrated-seeming look. Went upstairs with her bestie. To re-up, probably.

   2022, Sean Thor Conroe, Fuccboi, Hachette, →ISBN

   After an oddly-placed sponsored All State commercial starring the Please Don’t Destroy boys, a group of gal pals surprise their pregnant bestie Kelsie (Chloe Fineman) and her long-suffering husband Matt (Andrew Dismukes) at their baby shower […]

   2024 November 17, Zach Vasquez, “Saturday Night Live: Charli xcx has fun in otherwise middle of the road episode”, in The Guardian, →ISSN

2. informalA term of address for someone, usually used to instruct, to make a statement, or to draw attention.
3. informalA friend (any in general).