an old horse which knows the way
Shitu laoma is a Chinese word. Pinyin is sh í t ú L ǎ om ǎ, which means to refer to someone who is very familiar with something. It's from "passing mopanling at night.".
The origin of Idioms
Qian Qianyi's poem "passing mopanling at night" in the Qing Dynasty: "if you are hungry for food, your heart is not full, and if you know how to use it, you can find it."
Analysis of Idioms
An old horse who knows his way
Idiom usage
To be the subject or object of; refer to an experienced person
an old horse which knows the way
one 's beauty was such as to overthrow cities and ruin states - qīng guó qīng chéng
a loss may turn out to be a gain - sài wēng zhī mǎ
all is quiet in the dead of night - yè lán rén jìng