be dreesed in fine clothes and ride on well-groomed horses
Xianyiliangma, a Chinese idiom, Pinyin is Xi āī NY ī Li á NGM ǎ, which means to dress strong horses; it means to dress extravagantly; it is the same as "xianche Nu Ma". From Taiping Guangji.
The origin of Idioms
The 310th volume of Taiping Guangji by Li Fang of Song Dynasty quoted from Guangyi Ji · Ruyin people by Zaifu of Tang Dynasty: "Ruyin man's surname is Xu, shaogu, white, graceful, good clothes and horses, and he travels freely."
Idiom usage
Used as an object or attribute; used in writing.
be dreesed in fine clothes and ride on well-groomed horses
indulge in malpractices and obtain private advantages - wǔ bì yíng sī
appoint upright and remove the crooked ones -- to replace the bad ones by good ones - jǔ zhí cuò wǎng
the fallen grass and sinking cesspool - zhuì yīn luò hùn
have an uninterrupted career of advancement - gān tóu rí shàng