hoodoo

(noun) (geology) a column of weathered and unusually shaped rock. Example: "A tall sandstone hoodoo."

(noun) a practitioner of voodoo.

(noun) a charm superstitiously believed to embody magical powers. Synonyms: juju, voodoo, fetish, fetich.

(noun) something believed to bring bad luck.

(verb) bring bad luck; be a source of misfortune.