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Slang for Facebook official. When someone starts dating someone and you see it on Facebook.
Person 1: You updated your relationship status on Facebook!
Person 2: Yeah, so?
Person 1: You two are F.b.o. now That's huge!
f.b.o. by B-rizzle December 28, 2018

O.B.A.T.T. 

Stands for Our Boys Are Too Thicc
Guy: it’s cramped in here
Other man: sorry dude, O.B.A.T.T.

K.S.O.B. 

(Krazy Sons Of Bitchez) A teenage film group that creates comedic videos based on movie spoofs, music videos, and anything funny.
"Did you see K.S.O.B's new movie!"

"What's a K.S.O.B.?"

"Krazy Sons Of Bitchez, duh!"
K.S.O.B. by shinyman14 December 17, 2007

F.T.O.B. 

My wife Sandi is a F.T.O.B. !
F.T.O.B. by Carib71 October 15, 2018

I.S.O.B. 

Short for "I've stepped over better "
Daniel: I heard you hooked up with Justine.
Fernando: Hell no! Man, I.S.O.B.to jerk off...
I.S.O.B. by Scatterbrainiac March 27, 2021
Someone who moved to this country recently and has a messed up accent not a cool accent...a messed up one and they dont speak correctly
Dude there is this weird kid in my PE hes such a F.O.B
F.O.B by Alise December 15, 2003