Infiltrating someone's electronic communication account, such as email or facebook, and sending out erroneous and usually embarrassing content for said user
After my sisterleft her laptop on and her Facebook account up, I facepunked her status to imply she suffered from herpes.
Facepuke (face + puke) is a derogatory term for the popular social networking website Facebook, mostly used by those who think Facebook merges individuals into one homogenous grey mass, subverts users' individuality and makes them reveal private matters to their "friends" most of them the've never met in person.
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.
Shit i left my facebook open and i got 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
A person has been Facefucked when their significant other falls in love with someone else on Facebook and leaves them.
Your wife hooks up with her first boyfriend after he sends a friend request on Facebook. They fall in love and she leaves you. You just got Facefucked.