狼心狗肺 Traditional form: 狼心狗肺 Pinyin (reading): lángxīngǒufèi Definitions: lit. heart of wolf and lungs of dog (idiom) cruel and unscrupulous Characters: 狼 - wolf 心 - heart; mind; soul 狗 - dog 肺 - lungs Traditional characters: 狼 - wolf 心 - heart; mind; soul 狗 - dog 肺 - lungs