Y/BSFN

Y = your

Bsf = best friend
N = name
Y/BSFN = your best friend’s name

This term is often used during self inserts on stories or other related things

You: (Y/BSFN) isn’t really all that cool you know?

Kinsley: muahhaha, oh, but they are (Y/N)

by Lilysuperstarers May 29, 2023