f.b.o.

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!

by B-rizzle December 28, 2018

F.B.O.

Facebook Official. When a person or people decide to become public enough about their relationship to put it on their Facebook profile.

"Dave and Lisa must be getting pretty serious, they made their relationship F.B.O."

"Looks like Harrison and Ashley are definitely broken up. Both of them are single on Facebook. It's F.B.O."

by G55 July 4, 2007

F.B.O

Fat Bitches Only

Aye Dawg did you see that F.B.O that bitch was Fo Hunnid Plus!

by Christian Wanner February 4, 2019