: dubiously or outlandishly mystical, supernatural, or unscientific
And she has written a book … in which she dismisses what she calls "woo-woo spirituality" in favor of some straight talk on living with loss …Linda Richman
Energy beams from the eyes certainly sounds like woo-woo stuff …Steve Blow
woo-woo noun
One man's woo-woo, of course, is another's deeply held belief system. Julia Moskin

Word History

Etymology

probably from the interjection woo-woo as a conventional representation of an eerie or ghostly sound

First Known Use

1992, in the meaning defined above

Time Traveler
The first known use of woo-woo was in 1992

Dictionary Entries Near woo-woo

Cite this Entry

“Woo-woo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/woo-woo. Accessed 5 Feb. 2023.

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