The act of "tweeting" by using your facebook wall instead of a Twitter account.
If you want to know what she is up to, just look at her wall on Facebook. She is a Face-Tweeter.
When your stuck on your social media for hours and frozen in time. Not even hearing or seeing anything around you.
Insta-tweet-face-
How was your date? Idk... she was. instatweetfaced the whole time!
The posting of mundane information that is better suited to twitter
FB Post: I just had a ham sandwich for lunch
Comment: Dude, don't face-tweet me that boring shit!
When one uses facebook as a twitter like apparatus to express random shit.
Face tweeter: "I just ate some soup lol"
Guy: "Couldn't you have just used your twitter account for that?"
Face tweeter: "Oh, sorry. I must have been face tweeting again."