A pejorative term for members of the Unification Church, sometimes known as the Holy Spirit Association for the Unification of World Christianity.

A neutral term is Unificationists.

Derived from the name of their leader, Sun Myung Moon.

Moonies are reputed to be victims of mind control, but if so, it can't be very effective, since there have never been more than 10,000 Unification Church members in the U.S.A., and even at the peak, the attrition rate was staggering.