1) Italic 2) Italic language 3) Non-standard speech 
muddled or mixed-up
poems that consist of expressions in more than one language. John Skelton wrote several poems in this manner.
• (n.) A heap of thing confusedly mixed together; a jumble. • (a.) Pertaining to, or like, macaroni (originally a dish of mixed food); hence, mixed; confused; jumbled. • (n.) A kind of burlesque composition, in which the vernacular words of one or more modern languages are intermixed with genuine Latin words, and with hybrid formed b...
originally, comic Latin verse form characterized by the introduction of vernacular words with appropriate but absurd Latin endings: later variants ... [2 related articles]
Mac`a·ron'ic noun 1. A heap of thing confusedly mixed together; a jumble. 2. A kind of burlesque composition, in which the vernacular words of one or more modern languages are intermixed with genuine Latin words, and with hybrid formed by adding Latin terminations to other roots. 
[adj] - of or containing a mixture of Latin words and vernacular words jumbled together
adjective of or containing a mixture of Latin words and vernacular words jumbled together; `macaronic verse`