Grandma - I finally got a facebucket! Now I can add you and send you virtualbirthday gifts and invites to stupid groups to annoy the crap out of you. YAY!
Me -....yay?
When someone leaves their Facebook account logged in or shares their login details with someone else at which point someone makes posts to said person's account without their knowledge.
"Bill just got facejacked. That guy gave me his login credentials for Facebook so I wrote on his wall and updated his status."
v. The act of leaving ones facebook alone and unattended around drunk, creative young adults with nothing better to do than fuck with each other. The consequences can be devastating. Changed names, relationship statuses and your grandmas photos fro her trip to the bahamas are all free game. One can only untag, apologize, explain to your aunt why you "liked" anal sex and move on. Turn facebook into fun with Facemucked.
When ones facebook is left unattended around friends, and every creative bone in the young adults mind focuses on destroying the integrity of tthe social networking medium. Slander, sexually explicit profile pictures, changing language汉语/漢語 and alot more friends from saudi arabia are all hilariously funny. dont complain, retalliate, come back bigger and more creative. and so the sport of FaceMucked was born