bestie

noun

Etymology: Etymology tree English best English -ie English bestie From best + -ie.

1. A best friend.

   “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?”

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

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