vulgarism

[ vuhl-guh-riz-uh m ]

/ ˈvʌl gəˌrɪz əm /

vulgar behavior or character; vulgarity.

a vulgar expression; a word or phrase used only in common colloquial, and especially in coarse, speech.

Origin of vulgarism

First recorded in 1635–45; vulgar + -ism

Here is a gross vulgarism which we sometimes hear from persons of considerable culture.

The Verbalist |Thomas Embly Osmun, (AKA Alfred Ayres)
A vulgarism is an expression decidedly incorrect, and the use of which is a mark of ignorance or low breeding.

English Synonyms and Antonyms |James Champlin Fernald
One relates to a vulgarism of language, which I grieve to say is sometimes heard even from female lips.

The Autocrat of the Breakfast-Table |Oliver Wendell Holmes
In Scotland, though the English may regard it as a vulgarism, I have heard the word used in this form.

Notes and Queries, Vol. IV, Number 99, September 20, 1851 |Various

The corrupt use of the word, as above mentioned, is laid down as a vulgarism.

Every-Day Errors of Speech |L. P. Meredith

vulgarism

/ (ˈvʌlɡəˌrɪzəm) /

a coarse, crude, or obscene expression

a word or phrase found only in the vulgar form of a language

another word for vulgarity