Be at home
As a Chinese idiom, Pinyin is d ā NGM é nd ǐ h ù, which means supporting the door. It comes from Ling Mengchu's the first time to make a surprise.
[Pinyin]: simple spelling: DMDH [example]: he and his wife have no mother, they just want to be slaves. (Ling Mengchu, Ming Dynasty, Volume 25, making a case at the beginning of the story).
Be at home
sit idly by without lending a helping hand - zuò shī bù jiù
have a haughty and imperturbable look - ào nì zì ruò