Kettō Gaijin!
Although I have to note, GorT, that that’s Japanese. The Mandarin equivalent is 鬼子, kuei-tzu*, or 洋鬼子 yang kuei-tzu specifically for Europeans, or less offensively, 老外, lao-wai.
*Wade-Giles is the official romanization of the Gormogons. But it’s guĭzi for those of you who can’t live without pinyin.
Picture is a Right & Harmonious Fist member from the Boxer Rebellion, 1900.
Don’t ask impertinent questions like that jackass Adept Lu.