Noun
Boston butt (plural Boston butts)
English Wikipedia has an article on:Boston buttWikipedia
(US) A cut of pork from the upper part of the shoulder from the front leg.
Usually the meat is Boston butt, pork chops or pork fillet. Source: Internet
You can also use Boston butt (moksal in Korean) or picnic shoulder (apdarisal in Korean), which also works nicely. Source: Internet