Boston butt is a cut of pork that comes from the upper part of the shoulder from the front leg and may contain the blade bone. Smoked Boston butt, which is then pulled from the bone and served with or in a spicy sauce is what is commonly referred to in the American Deep South as Barbecue.
History of the name and cut 
In pre-revolutionary New England and into the American Revolutionary War, some pork cuts (not those highly valued, or "high on the hog," like loin and ham) were packed into casks or barrels (also known as "butts") for storage and shipment. The way the hog shoulder was cut in the Boston area became known in other regions as "Boston butt". In the UK it is known as "pork hand and spring", or simply "pork hand".
- "Cuts: Shoulder". TheOtherWhiteMeat.com. National Pork Board. Retrieved 16 October 2009.
- Sheryl Julian and Julie Riven (May 7, 2006). "Here's the Rub". Boston Globe.
- Lourdes Castro (10 November 2009). Eat, Drink, Think in Spanish: A Food Lover's English-Spanish/Spanish-English Dictionary. Random House Digital, Inc. p. 259. ISBN 978-1-58008-954-8. Retrieved 28 October 2012.
- "Carnitas." Food Resource, Oregon State University. Accessed October 2012.