朕后宫佳丽三千不需你一个
[zhèn hòu gōng jiā lì sān qiān bù xū nĭ yī gè]
I Have My Harem And Do Not Need You parodies ancient Chinese imperial concubine culture where emperors supposedly had numerous beauties in their harem. This name humorously rejects another person by comparing the speaker (often humorously referring to oneself as emperor) having many romantic partners already and thus doesn't need another person in a self-importance manner.