Gang Stalking is organized harassment, usually by a fairly large number of persons, done in a secretive or clandestine way, targeting people
deemed to be unacceptable. Usually it is done in a way intended to "fly beneath the radar" of legitimate law-enforcement.
Reasons for this harassment include suspicion of deviant sexuality, unpopular or uncommon
religious practices, racism or ethnic hatred, or mental illness.
There are known origins in community activism opposed to "scattered site housing" of mentally-disabled persons on public relief or welfare, pre-release or post-release housing for convicts and parolees, etc.
Let's start gang stalking this guy Joe, I heard he's weird and I want to find out for sure and get rid of him if he really is weird.