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It is one of the most disliked words in the English language: moist.

But why do so many people have an aversion to it? It’s something Oberlin College psychologist Paul H. Thibodeau set out to investigate, reported.

He found that 18-percent of people find the word ‘moist’ to be unpleasant.

“[T]he prototypical moist-averse person is a young, neurotic, female who is well-educated and somewhat disgusted by bodily function,” Thibodeau wrote in the journal PLOS ONE. 

Murderer, vomit, phlegm, and some other NSFW words ranked worse than moist.

Words like love, brave, and gold rated much higher.

Thibodeau found those people who dislike the word ‘moist’ did not have issues with similar sounding words like “foist,’ ‘hoist,’ and ‘rejoiced.’

“The present studies suggest that, when it comes to the disgust that is elicited by words like ‘moist’, there is an important cultural component,” Thibodeau wrote. “The symbols we use to communicate with one another can become contaminated and elicit disgust by virtue of their association with bodily functions.”