watermelon
 n.— «Major Robert D’Aubuisson, leader of the ultra right Nationalist Republican Alliance (ARENA), likes to compare the Christian Democrats to a watermelon. “Green (the Christian Democrats’ official color) on the outside,” he says, “and red on the inside.”» —“El Salvador: Election just a sideshow to real fight” by Oakland Ross Globe and Mail (Toronto, Can.) June 4, 1983. (source: Double-Tongued Dictionary)