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!
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1) To commit Facebook murder.
2) (Figurative) To cyberbully.
I'll Facebookmurder you for this! You're going to cry when you see your profileรขยยฆ
1) Inclined to Facebookmurder.
2) Of, similar to, reminiscent of, or pertaining to Facebook murder.
"That guy's Facebookmurderous." "Those posts are Facebookmurderous.