Ooooo! I like. I have seen the term, but didn't 'get' it.
Quisling: A word Norwegians are not very proud of having given to the world: it derives from Vidkun Quisling (1887-1945), a Norwegian politician who collaborated with the Nazis during World War II. He established his name as a synonym for "traitor", someone who collaborates with the invaders of his country, especially by serving in a puppet government. Quisling was found guilty of high treason in 1945, and was executed by firing squad on the 24th October 1945.