a dragon 's head and a snake 's tail
Dragon head and snake tail, a Chinese idiom, Pinyin is l ó NGT ó ush é w ě I, which means that the beginning is grand and the end is decaying. It comes from Zhuzi Yulei.
The origin of Idioms
Zhu Xi of the Song Dynasty, Volume 130 of Zhu Zi Yu Lei: "for example, in the preface to the collection of ougong's works, it was said that the end of the collection was so good, but at the end of the collection, it was just like this, which covered more than the end of the collection."
Idiom usage
Combined; as object and attribute; with derogatory meaning. It took seven or eight years for the trouble to come to an end. Guo Moruo's historical figures: ten thousand musicians of Sui Dynasty
a dragon 's head and a snake 's tail
you cannot afford to incur public wrath - zhòng nù nán rèn
become aware of one 's errors and turn back from one 's wrong path - mí tú zhī fǎn
disasters pile up on one another - huò bù dān xíng