It's the look you get when one of your parents walk on you jacking off. You usually stare at them with an open mouth saying "uh," and it's followed by "It's not what it looks like," or "I was just scratching."
"Man I was totally Jack Faced when my mom walked in on me jacking it."
by Hobo Destroyer September 26, 2009
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If a previous facebook user hasn't logged out of their profile, the next person may come along and edit details about this person.
Aron; "Peter, why does your profile say "Peter is bumming"?"
Peter; "Because Ian face jacked my profile"
by waveyourarms May 9, 2008
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The action of masturbating to one's facebook pictures.
After facebook creeping on her, I totally face jacked on her photos.
by morrishall September 30, 2010
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When a friend forgets to logout of Facebook, Face-jacking is the art of making them appear to have written hilarious status updates about their own sister, become "fans" of lame things, and "like" anything and everything.

Not to be confused with a botched female circumcision, or jack nasty face
1. Cam: Why does Tim like my status?
Matil: Tim seems to like my status too?
Ben: Why would he like my status, when its just me talking about how good looking i am?

Matil: Looks like classic Face-Jacking

2. Why the hell am I a fan of both 'I hate crocks' and 'I hate the people who hate crocks' ?? Damn Face-Jacking...
by Mad Dweeb November 5, 2009
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When you log on to Face Book and see that people have been carrying on conversations on "your page" without you. People that don't even know each other just sharing the witty reparte and now it takes up your whole page!
"I went to my home page on Face Book only to find my page had been "face-jacked" by my friends about some comment I made, that now has nothing to do with my original thought!"
by bearbax June 16, 2009
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Unfortunate genetic disorder or botched female circumcision in which the vagina and uteral region appear as though Crocodile Dundee went dynamite fishing in the female genitalia.
While she was doing the human pretzel, I gave the Chinese gymnist a jack nasty face with a sledge hammer, some barbed wire, and egg beaters.
by Rufus December 17, 2004
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