Fargo Marge's husband is despondent because his entry in the stamp contest is awarded only use on a small denomination stamp. The winners of wildlife stamp contests have their art recreated on stamps that must be purchased by hunters. Such stamps are used only on hunters' licenses, not on general postage. Minnesotans don't actually talk like that.
Nobody says that very often.
It's a Norwegian term, but it's rarely used. The only accent they have is the Mid-western one that everyone around there has, unless you're Hispanic or have just moved from another country. In the scene where the two kidnappers are driving into Minneapolis the one driving comments that the tall glass building is the second tallest building in the mid-west behind the Sears Tower. When actually the next two tallest buildings are also in Chicago - the Amoco Oil building and the John Hancock building. In the scene when one of the kidnappers is chasing the car that witnessed the patrolman's murder, he stops at the overturned car and fells the fleeing driver with a single shot from his pistol.