Wiktionary
n. A form of makizushi popular in British Columbia, containing barbecued salmon, cucumber, and other varying ingredients.
Wikipedia
The B.C. ( British Columbia) roll is a Maki-zushi (roll), a kind of sushi, containing barbecued salmon and cucumber. Often the roll contains barbecued salmon skin coated in a sweet sauce. There are many variations of this roll. Variations include barbecued salmon skin with mayo.
The name comes from the fact that British Columbia is famous for wild Pacific salmon. Many sushi restaurants in B.C. serve the B.C. roll as a part of their menu. The Vancouver-based Japanese chef Hidekazu Tojo created the B.C. roll in 1974 when he used salmon skin in place of the traditional anago (salt-water eels), which was difficult to obtain in the West Coast.