look up any word, like ratchet:
 
2.
Facebook fuck buddy. Finding a friend on facebook to hook up with no strings attached
hey girl, wanna be my fb fb?
by covert21 February 01, 2011
 
1.
Facebook fuck buddy. People you've friended on Facebook that you have cybersex with.
Sorry, I couldn't chat last night. I was talking to my FBFB.
by originalfbfbgirl April 15, 2009