Macaronicisms refer to the intentional mixing of languages, dialects, or jargons in literature or speech. It's a unique way of expressing an idea and adding humor to the delivery of a message. Some synonyms for macaronicisms include lingua franca, argot, patois, dialect, and creole. Lingua franca refers to a common language used by people who do not share the same native language. Argot is a specific jargon used by a group of people, especially criminals, to communicate. Patois is a dialect spoken in a specific region or by a particular group. Dialect refers to a particular form of a language that is peculiar to a specific region or social group. Finally, a creole is a language resulting from the mixing of several languages.