Quisling = Vidkun Quisling, a Norwegian politician who collaborated with the Nazis.
quisling = a traitor who collaborates with the invaders of his country, esp. by serving in a puppet government.
sizzling quisling = a traitor burned at the stake, usually by the local populace.
(Lemme see. Charcoal, check. Lighter fluid, check. A Bic to flick, check....)