1. To ignore someone on Facebook. This can be considered especially rude if the person has posted something directly on to your wall that requires an answer. Also can be incredibly empowering to the person who is Faceblanking.
2. To ignore someone for Facebook. Whole conversations can be carried out to someone's back, as they roam Facebook, without the speaking party realising they are being Faceblanked. This has been made increasingly worse by the use of mobile internet to access Facebook and growing wi-fi access avaliable in and around cities.
A: "Hey, did you see the game the other day?"
B: *Continues to use Facebook Chat*
A: "I'll take that as a no...So did you know that an alien abducted me last night?"
B: *Continues use of Facebook*
A: "Well I know when I've been well and truely Faceblanked."
Logging into Facebook from work for just a quick "lurker" glance only to receive an IM from someone that knows you should be working.
I was at work today and I swear I was only on Facebooklike 30 seconds when I got FaceBusted with an IM from a spouse asking, "Shouldn't you be working?"
dude1: she said ive facewasted my life away
dude2:...well thats kind of true
dude1: HOW CAN YOU SAY THAT!!!
dude2: well we're chatting on face book right now
dude1: oh.... *sob sob*