RhymeZone: jonestown definitions

Definitions of Jonestown:

noun: A former settlement in northern Guyana founded by the Peoples Temple cult, and the site of an infamous mass murder-suicide in November 1978.
noun: (informal) The Jonestown massacre itself.
noun: Any of a number of other places in the English-speaking world.
noun: Any mass suicide or murder, especially one with religious or cultic overtones.

(Definitions from Wiktionary)