Wiener sushi

I was just reading the WikiPedia article on sushi and noticed that it's somewhat out of date in one respect. Low-cost sushi restaurants, particularly the ones where every dish costs the same 100 yen (just over $1 US), make several kinds of sushi with cooked meat, particularly what has become one of Lee''s favorites -- wiener sushi. I hadn't run across the word wiener in a long time. Here it means, as it used to when I was a kid, a hot dog, a very small hot dog, like the ones sold in cans.