A Swedish holiday to celebrate the coming of spring and a day for everyone to get smashed and light things on fire. See also Holidays, Swedish.
Quite literally sour herring. It's fermented with care (!) for about a year. When the can starts to bulge, it's time to eat. Often eaten outdoors because of its awful stench and even then not much approved of by anyone within 1000 feet. See also Fish, Swedish.