Definition - A vulgar word or expression.

Example -
Fuck you.

Etymology -
The word derives from the Latin vulgaris, of or pertaining to the common people (from vulgus, the multitude).

Oxford English Dictionary -
The first OED citation for the term vulgarism is from 1746:
"The Countess … has entertained the town with an excellent vulgarism."
(Horace Walpole, Letter to Mann, 28 March 1746)

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