In the 1930s, some practitioners used the noun "hoodooism" (analogous with "occultism") to describe their work, but that term has dropped out of common parlance.
Hoodoo is also an adjective ("he layed a hoodoo trick for her") and a verb ("she hoodooed that man until he couldn't love no one but her").
in the mid 19th century, ships that had suffered a series of ill-fated voyages and mishaps were called hoodoo ships or were said to have been hoodoo'd.
In some accounts the problems onboard these vessels were attributed to an evil spirit or presence.
Those who attribute the word hoodoo to Irish or Scottish seamen say that is is a phonetic transliteration of the Gaelic words Uath Dubh (pronounced hooh dooh), which means dark phantom, evil entity, or spiky ghost.
T In early 20th century agricultural supplies, "hoodoo powder" was a compound applied to tree stumps to cause them to decay more 'rapidly -- again a reference to ghosts -- in this case the ghosts of dead trees. In contemporary Britain, hoodoo usually refers to a sports-jinx ("Tottenham Hotspurs banish Manchester United hoodoo").
In the African American community, the word hoodoo has, for the past 100 years at least, referred to a whole set of magical practices, of which curses and bad luck are only a small part.
A professional consultant who practices hoodoo on behalf of clients may be referred to as a "hoodoo doctor" or "hoodoo man" if male and a "hoodoo woman" or "hoodoo lady" if female. Taylor's diary for 1891, in which he describes and illustrates meeting with a "Hoodoo Doctor" while on a train.