Facebook murder 

Facebook murder is to delete someone from your facebook friends list.

Facebook: Delete this person from your friends list? Person: muhahaha yesss facebook murder haha

Facebook murder by Marthaw138 June 22, 2009

Facebook murder 

1) Maliciously posting harmful, humiliating, or incriminating content on a person's Facebook or other social networking site profile, or on any page of Facebook or another social networking site, in an attempt to make that person commit suicide. Often done as a group activity.
2) (Figurative) Any type of cyberbullying.

I looked at the profile of this kid who committed suicide; it was Facebook murder!

Facebook murder by ak-boing November 16, 2010

Facebookmurder 

1) To commit Facebook murder.
2) (Figurative) To cyberbully.

I'll Facebookmurder you for this! You're going to cry when you see your profile…

Facebookmurder by ak-boing November 16, 2010

Facebookmurderous 

1) Inclined to Facebookmurder.
2) Of, similar to, reminiscent of, or pertaining to Facebook murder.

"That guy's Facebookmurderous." "Those posts are Facebookmurderous.

Facebookmurderous by ak-boing November 16, 2010