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
Iron bars are ground into needles - tiě bàng mó chéng zhēn
There's no place to go when you've broken your iron shoes - tàpò tiěxié wúmìchù,délái quánbù fèigōngfù
quick flow of writer 's thoughts and imagination - tù qǐ hú luò
high carriage and four horses -- symbol of wealth and nobility - sì mǎ gāo chē