B.O.S 

B.O.S is an abbreviation for Big Ol' Softie.

A B.O.S is a guy who pretends to be tough but is actually very sensitive if you can get past his emotionless facade.

Girl #1: I heard he is self-centered and doesn't care about anything but sex.

Girl #2: Nope, Coty is a B.O.S!

B.O.S by Redchestedbirds July 3, 2011

B.O.S 

It means when you're going for a ( Wank, Masurbate, etc )
B. = Burst
O. = Of
S. = Speed

Me> Hey fred, I'll brb.
Fred> kk, why?
Me> Going for a B.O.S.
Fred> Kk, safe!

B O S B.O.S BOS Wank Masturbate

B.O.S by Definion Of The Day !! Hey Hey ! March 17, 2007

B.O.S 

B.O.S stands for Beat off session. A B.O.S is time set aside for a male to masturbate.

- Karl can I call you back?

- Why man?

- Im gonna go have a B.O.S

or

- Hey Raquel, you mind giving me a hand with my B.O.S?

- Sure, anytime

B.O.S by TheJordanman November 8, 2006

B.o.s 

Term: Boss only sh**

Girl all we do is b.o.s

B.o.s by Yrb January 12, 2021

B.O.S 

Bald on the side

Yo! did you see that girl's head? She's B.O.S!

B.O.S by lmars March 15, 2023

B.O.S. 

Black Out Status

Kate: "B.O.S. tonight?"
Kayla: "It's a Thursday, is that even a question?!"

B.O.S. by Danielle Crazy Bitch September 18, 2010

B.O.S. 

Blast On Site- used in gang grafitti to threaten rival gangs.

Brothers Of the Struggle - meaning any gang member involved in the gang struggle

B.O.S. Lil' Mac, Blast him On Site

B.O.S. by Oscar III March 6, 2008