BSFN

Butt stuff first night

match.com chat
GUY: have you ever heard of bsfn?
GAL: yeah lets try it tonight

BSFN

Best Song For Now.

person 1: yo! have you heard that EP its the BSFN

person 2: no

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)