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1.
staff in a restaurant or cafe who do all the washing up. they're generally not allowed to wait on tables and have a perpetually miserable expression on their faces, as well as very, very red faces.
Can you call the waiter over? No, not him, he's just a dish pig.
by londonmark September 05, 2003
 
2.
A dish pig is a person who works in the kitchen of any industry, but does anything but cooking. i.e. cleaning dishes, cooking equipment, floors etc.
Usually student Chefs.
Dishpig, Student chef cleaning up after full time chefs.
by Ritchard666 January 27, 2007