Vulgarism

In the study of language and literary style, a vulgarism is an expression or usage considered non-standard or characteristic of uneducated speech or writing. In colloquial or lexical English, "vulgarism" or "vulgarity" may be synonymous with profanity or obscenity, but a linguistic or literary vulgarism encompasses a broader category of perceived fault not confined to scatological or sexual offensiveness. These faults may include errors of pronunciation, misspellings, word malformations, and malapropisms. "Vulgarity" is generally used in the more restricted sense.