hard-on

noun

ˈhärd-ˌȯn

-ˌän

plural hard-ons

slang, sometimes vulgar

: an erection of the penis

Word History

First Known Use

1888, in the meaning defined above

Time Traveler

The first known use of hard-on was in 1888

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hard oil

hard-on

hardpack

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Cite this Entry

Style

“Hard-on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hard-on. Accessed 21 May. 2025.

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