An incident which involves multiple frapists attacking a
single Facebook account simultaneously. Gang frapes most notoriously occur when a 4chan user posts an announcement on /b/ that they have hacked the Facebook account of some person (most often a female) for whom they feel some form of displeasure.
The person posting
will also encourage other users to join in on the attack, which inevitably leads to
n00bs with un-stealthy tactics ruining the
lulz for everyone by making it too obvious to casual observers what is actually happening. This is why gang frapes are innately fraught with fail.
A proper
frape is carried out by an individual rather than a group, so that a more surgical (and therefore lulzy) strike can take place.
My mom announced on her FB that she was thinking about becoming a back ally abortionist in her spare time, but when I
saw all the comments telling her to do it
faggot, I realized that a gang
frape was taking place