A piece of cake
Turn the soup over with the movement of your finger. It is a metaphor for making trouble easily.
Idiom explanation
It means to turn the soup upside down with a move of the hand. It is a metaphor for making trouble easily.
Idioms and allusions
It comes from the article of sending the poor written by Han Yu of Tang Dynasty: "each has his own opinions, and the name of a private company is a taboo. All those who make me look disgusting and make my words tasteless are my sons' aspirations. "
Chinese PinYin : liè shǒu fù gēng
A piece of cake