皮里春秋

Explanation: Do not say that keeping everything out of the speech. 　　Usage: Partial official; for adverbial; for written language 　　Source: "Jin Shu Chuan Chu take out": ", saying: 'Ye have skin in the spring season.' Words aloof without rank, and also in some Judgments." Thesaurus:  criticize mentally, circumbendibus anfractuosity, point to a hill and talk about grindstone— make concealed reference to something, Zhihei spoken parts in an opera