BSF

Butt sex friend.

A friend you have butt sex with. Could be male or female. That is my BSF.

by The real urban December 20, 2017

Boy bsf

What is basically synonymous with best friend or brother-zoning. It is not boyfriend status, so the guy gets no real reward for being there. Typically what happens to guys who try too hard, be it on purpose or on accident.

Generally, the guys who enter these less-than-platonic relationships are soy boys, or beta males who think that women actually find any of that desirable.

The only purpose this serves for the female is to use someone as an emotional tampon.

Female 1: My boyfriend is being a douche rn, but I'm glad you're here for me.

Boy bsf: I'll always be here when you when you need to vent.

by 6ix_6ins April 27, 2020

BSFWALF

Big Scary Fish With A Lazor On Its Face

Zomg guyz its a BSFWALF!!11

by mahnameizdabomb May 31, 2007

bsfd

Butt Stuff First Date
An abriviation about doing sexual acts including the butt on the first date

"I heard that she likes BSFD, I'm taking her out on Friday" "Congrats man"

by BSFD-expert February 9, 2017

BSF

inshort, best stranger forever.

bobo, at&t, and deedee are my bsfs!

by urnecksmeller(= June 18, 2008

Bsf

A best friend a really good friend,her name has to be kenzi because they are the best best friends ever!

Hey I got a good bsf !who is it ?her name is kenzi!wow I’m not surprised

by Strizak November 22, 2019

BSFN

Best Song For Now.

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

person 2: no

by annnnimooos October 20, 2009