2. By extension, can mean the practice of taking on an ethnically stereotypical persona; metaphorically, an Asian actor may be "donning yellowface" merely by portraying an Asian character in an exaggerated and/or demeaning fashion.
2. Although "Madame Butterfly" stories usually feature a woman of Asian heritage in the role of the Asian female lead, the Asian actress can arguably be accused of being in "yellowface" by portraying such a stereotypical and unflattering character.
Chris: Oh. You didn't hear? He was born with a genetic disorder. I think it's called yellow face.