Dudhwallah

[…] the butter comes out of a tin, and so does the milk, unless it is the grey watery catlap of the dudh-wallah.

2004, Neela Vaswani, "Possession at the Tomb of Sayyed Pir Hazrat Baba Bahadur Saheed Rah Aleh" in Where the Long Grass Bends, Sarabande Books, 2012, https://books.google.ca/books?id=ZQ5XgmT63mwC&printsec=frontcover#v=onepage&q&f=false The dudh-wallah hands Nanak a large cup of lassi and a small cup of milk.