Killing dogs with beef
As a Chinese idiom, the Pinyin is f à NNI ú t ú g à u, which refers to engaging in lowly business. It also refers to those engaged in cheap business. It comes from Chen Zilong's reward for Wu Ci Wei in Ming Dynasty.
The origin of Idioms
Chen Zilong of the Ming Dynasty wrote a poem "pay Wu Ci Wei:" don't come down between Wu and Chu
Idiom usage
As an object or attributive, it is used in people's work. A poem by Ma Junsheng
Killing dogs with beef
destroy the old and establish the new - pò jiù lì xīn