挂冠

guà guān yǐn tuì

挂冠隐退

resign from office and live in a hermitage

tā gàn le hěn duǎn de yī duàn shí jiān jiù guà guān ér qù le

他干了很短的一段时间就挂冠而去了。

He worked for a very short time and then resigned and left me.