The familial or friend relationship that occurs when your friends and family add your significant other, whom they don't really know, to their Facebook friends list just because you two are together.
by Jody M May 15, 2010
Get the Facebook in-law mug.Related Words
Facebook in-law
• SIGN IN (づ ◕‿‿◕ )づ Please sign in to vote and post new definitions Sign in with Facebook Sign in with Gmail
• Punched in the Facebook
• all up in my facebook
• In my Facebook
• rubbing it in your facebook
• "in your face"book
• In-Your-Face-book Friend
• facebookin'
• facebookin faggot