“Curio” in Chinese is 古董 (gǔdǒng).
好啦,老古董。
OK, boomer.
Example sentence from Tatoeba (CC BY 2.0).
Not to be confused with: 鼓动 (gǔdòng, to urge (an activity that may be beneficial, harmful or neutral); to encourage; to agitate; to instigate; to incite) · 股东 (gǔdōng, shareholder)