text: what is voodoo?   voodoo: a religion practiced chiefly in caribbean countries, especially haiti, syncretized from roman catholic ritual elements and the animism and magic of slaves from west africa, in which a supreme god rules a large pantheon of local and tutelary deities, deified ancestors, and saints, who communicate with believers in dreams, trances, and ritual possessions. also called vodoun .   a charm, fetish, spell, or curse holding magic power for adherents of voodoo.   a practitioner, priest, or priestess of voodoo.   deceptive or delusive nonsense.