In the weaving sheds and cotton mills of Lancashire, workers developed an exaggerated form of speech and gesture called mee-mawing to facilitate lip-reading.
https://books.google.co.uk/books?id=f6fQAgAAQBAJ&pg=PA37&lpg...
https://books.google.co.uk/books?id=f6fQAgAAQBAJ&pg=PA37&lpg...