They have to process every variety of English slanguage, plus Hindi, Urdu, Afrikaans, Tamil and Punjabi, and decide whether it's unnecessary, detrimental, stupid or just plain old banter.
In another aspect, we have slanguage, a blend of slang and language.
That is an example of slanguage and the teacher is one of our favorites.
With a squint of eye, a curl of lip, a twist of neck, and a body slanguage equally at home in boardrooms and barrooms, she embodies everyone she sees.