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4.
F.B.K. means that hopefully a girl and a guy are nothing but fuck buddies.
fuck buddy kids are just like Scott and Becky they are friends that fuck. F.B.K. These are two teens that are friends that want to fuck but not have a relationship.
by Laura Jean October 13, 2007
 
1.
Fat Bitch Killa':
A gang started in juvenile hall in Portland, Oregon. The gang spread and soon dominated. As members increased and grew up, the Oregon prison system gained a large F.B.K. population. This gang started as being a derogetory name towards obese women but that was only the name. The mission was brotherhood for white and a few other mixed-race young gangsters in South East Portland. There was another entry for F.B.K. and I believe she may have been a victim and carrys anomosity. Crimes specialized by Killa's is Car Theft, Robbery's, Forgery's.
Killa Kru! Killa say what!I can't believe that bitch was running her mouth on here and didn't know what she was talking about. F.B.K. is never said as, "you are and fbk!"
This is Fat Bitch Killa! Ho'! Killa kru!
by Balliano July 02, 2008
 
2.
fbk
An abbreviation for facebook.
"(864): She announced her abortion via fbk" - textsfromlastnight.com
by tfln_lover July 15, 2009
 
3.
Fuck bitches kill snitches
Im on my f.b.k.s shit. fuckin bitches killin snitches
by HashedThaFukOut November 09, 2013
 
5.
fbk
the abbreviation of firebird_king, the best gamer and programmer of his world. A sexy beast.
Look, firebird_king is in the game. Did you speek to fbk.
by firebird_king April 26, 2005
 
6.
FBK
Fat Bitch Killer, the name of a "gang" of poor white boys from the central coast of Oregon. Also used as a derogatory term for an unattractive large woman. Since there is nothing better in Oregon to do, naturally a band of underprivelaged young men got together to pick on the ugly fat bitches, which, let me tell you, there are a lot of in Oregon.
Look at that FBK in the Suburu! That bitch looks like she just ate a small third world country!