Pie And Mash

Pie and mash is a traditional London working class food. Pie, mash and stewed eels shops have been in London since the 18th century and are still common in south and east London.The main dish sold is pie and mash — a minced beef  pie and mashed potato. It is common for the mashed potato to be spread around one side of the plate and for a type of parsley sauce called "liquor" (although it is non-alcoholic) to be added. Liquor traditionally has a green colour which is not from food colouring but the parsley. It is also traditionally made using the water kept from the preparation of the stewed eels. The pies, mash potato and stewed eels are all prepared on the premises, jellied eels are usually bought ready prepared.
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Slash (Piss)

Slash (urinate)