杜门不出

杜門不出
dùménbùchū
(idiom) to shut oneself indoors; to avoid social contact; to cut oneself off from the outside world

CEDICT

紧闭门户，不外出与人交往。

重編國語辭典

Entry Composition

1 杜门 dùmén to close the door (lit. and fig.)
2 不出 bùchū to not exceed; to not surpass