Quisling, Vidkun Abraham Lauritz Jonsson 1887 - 1945. Norwegian politician. Leader from 1933 of the Norwegian Fascist Party, he aided the Nazi invasion of Norway 1940 by delaying mobilization and urging non-resistance. He was made premier by Hitler 1942, and was arrested and shot as a traitor by the Norwegians 1945. His name became a generic term for a traitor who aids an occupying force.