the Ku Klux Klan
noun [ S, + sing/pl verb ] uk/ˌkuː klʌks ˈklæn/ us/ˌkuː klʌks ˈklæn/ (abbreviation the KKK)
三K党(主要活动于美国南部的秘密组织,成员为新教白人,反对其他种族和宗教)
a secret US organization of white Protestant Americans, especially in the south of the country, who oppose people of other races or religions