John Haynes and Nigel McLoughlin are among the many teachers I *met* through Facebook. They teach students in creative writing. John's website currently features brief introductions to topics of interest to poets. Here is an excerpt from his introduction to the topic of poetic language. In this introduction, Haynes refers to the Russian linguist and literary critic Roman Jakobson:
. . . The poetic function is when the focus of attention is on the 'message' (i.e. the language) itself. For this reason poetic language is sometimes called 'reflexive'. This doesn't mean that in poems we don't also take account of other factors such as emotion and content.
Jakobson points out that the poetic function occurs in all areas of life not just in poems. 'Heinz meanz beanz', 'Go to work on an egg', 'No pain no gain', 'credit crunch' and so on are all examples.