voodoo magic

Voodoo magic refers to supernatural practices associated with Vodou, an Afro-Caribbean religion originating in Haiti.

In popular usage, the term often carries sensationalized connotations of curses, dolls stuck with pins, and dark sorcery—imagery largely derived from Hollywood rather than actual religious practice.

More broadly, voodoo magic describes any process that seems mysterious or inexplicable: I don't understand how the algorithm works—it's voodoo magic to me.

The phrase often implies skepticism about whether something actually works or is merely theatrical nonsense.