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. 

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

B.O.S. 

stands for Beating on sighting

timmy been slipping up give him a B.O.S.

B.O.S. by kingkong420 January 7, 2008

B.O.S. 

stands for Balls of steel , is used when someone does something that takes a lot of balls. so you you give them their props. is a compliment given to a true badass

dude 1-- " oh man i cant belive she just did that shes crazy!"

dude 2-- "i know man shes got some B.O.S.!"

B.O.S. by yellowseven365dude September 14, 2012

b.o.s. 

brushes off shoulder or brushing off my shoulder; used when you want a cocky way of saying thank you

jordan: dawg, you are so good at being cool
kim: b.o.s.

b.o.s. by Kimburrlee May 11, 2008

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