n. & adj. — Food
a smoked meat, usually brisket, that is often sliced thin and used in sandwiches (see Image 1).
Type: 1. Origin — Montreal smoked meat as a term is generally used outside of Montreal (see the 1998-2013 quotations), while in that city it is usually referred to simply as smoked meat. The term is most prevalent in Canada (see Chart 1). Note that the 1974 quotation refers to a play of that name, but it shows that the term (without -ed in that case) was already enregistered, i.e. symbolic of Montreal, by that time (Agha 2006).
See also ITP Nelson, s.v. "Montreal smoked meat", which is marked "Canadian" and COD-2, s.v. "Montreal smoked meat", which is marked "Cdn",
See also: poutine (meaning 1) smoked meat mechoui (meaning 2) Montreal bagel
Images:

Image 1: A Montreal smoked meat sandwich. Source: Wikimedia Commons. Photo: chensiyuan
Chart 1: Internet Domain Search,16 Aug. 2012