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 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

by TheJordanman November 8, 2006

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

by lmars March 15, 2023

B.O.S.

When my girlfriend walked out in her new bikini I got a B.O.S.

by Vada Vada July 23, 2020

Term: Boss only sh**

Girl all we do is b.o.s

by Yrb January 12, 2021