niǔ​hù​lù

Niohuru

钮祜禄 鈕祜祿 niǔ​hù​lù
Niohuru
(proper name) Niohuru, a prominent Manchu clan during the Qing Dynasty
Niohuru (slang)
to describe someone who has returned with a powerful, hardened, or more formidable persona after a period of transformation (alluding to the character Zhen Huan in the TV drama Empresses in the Palace)