零号 Traditional form: 零號 Pinyin (reading): línghào Definitions: (slang) bottom (in a homosexual relationship) Characters: 零 - zero; fragment, fraction 号 - mark, sign; symbol; number; to call, to cry, to roar Traditional characters: 零 - zero; fragment, fraction 號 - mark, sign; symbol; number; to call, to cry, to roar