习大大 Traditional form: 習大大 Pinyin (reading): Xídàdà Definitions: Papa Xi, nickname for Xi Jinping 習近平/习近平 ( Xí Jìnpíng) Characters: 习 - to study, to practice; habit 大 - big, great, vast, high, deep 大 - big, great, vast, high, deep Traditional characters: 習 - to study, to practice; habit 大 - big, great, vast, high, deep 大 - big, great, vast, high, deep