Labskaus is considered the signature dish of Hamburg Germany. A mixture of canned corn beef, potatoes, onions, and beets are fried into a glowing pink mush and served with fried egg, herring and pickles. It tastes better than it looks and can be found on the menu of restaurants all over Hamburg. In general it could be considered the signature dish of the entire Schleswig-Holstein area of Northern Germany, as Bremen and Lübeck also claim labskaus as one of their specialties.
There are similar dishes with similar sounding names all around the Baltic Sea. Lapskaus in Norway, lapskojs is Sweden, and skipperlabskovs in Denmark. The nickname "scouser" used for people from Liverpool comes from their local dish lobscouse, and corned beef hash in the States, especially red flannel hash from New England could definitely claim an origin in labskaus. The strange thing about labskaus is that it has no meaning in any of the languages where the dish is popular. Most etymologists believe the name comes from the Lithuanian labas kaušas and Latvian labs kauss which mean "good ladleful" or "good bowl", but neither of these countries have a similar dish as far as I know.