noun
occult boom; occult fad
Refers to a period of widespread public interest in occult topics, such as in the 1970s in Japan.
1970年代に日本でオカルトブームが起きた。
An occult boom occurred in Japan in the 1970s.
Variant with interpunct, sometimes used for clarity.
From English 'occult' + 'boom', referring to a surge in popularity of occult topics.