Your BFF. The one you go to for advice or comfort anytime of day. The one friend who you can share anything with. The first person you tell things to and the first one who always comes to mind. The friend that you can't wait to talk to because no matter how boring of a day you've had, there's always tons of things to share. This is the friend who takes up the majority of your minutes/texts.
Alicia trips and falls in the middle of the store.
Alicia then immediately texts her "go to girl" Jen to share the embarrassing story.
Jen immediately responds with comfort and understanding... and most likely laughter.