Tricks learnt fr story: ," Chu Ker Ji Yue ", name pasted by friends on donkeys's face. His son corrected it to Master Chu Ker Ji Yue Ji Lui which means Ju Ker Ji Yue's donkey . Chu Ker's face was long comparable to donkey's face ). This means the donkey is not aware it has a long face.Nowadays, people utilise these words to say that the person doesn't know his " long face."( his ugly deeds behind) ie . Cho lo ter Yi mien.