An attractive women/girl of East Asian, Southeast Asian, or Pacific Islander decent.
Asian girls are smart and have figured out that all's they have to do to control the white man is to tilt their head to one side, while bating their eye lashes, and make a peace sign ( some times while pouting their lips) see kawaii . This will immediately cause the white man to fall under their spell. He then will proceed to carry things for her, make car payments, and watch Korean drama s. While other kinds of men are affected by Asian girl mind tricks the white man seem to be particularly susceptible, and lacks very little immunity to Asian cuteness.
see also yellow fever.

the thing that you don’t have when you’re phones percentage is over 20

A really cute asian girl.

Relative to the term black man's kryptonite; made popular by the movie Undercover Brother.

A really fine white girl!!! One that is totally hot. Just ask any white man who has worked hard all his life to achieve success then "blows it" because of such a girl. Or leaves his wife for one. Just because the para-phrase Black Man's Kryptonite became popular after a latecoming movie "Undercover Brother" doesn't mean that the original phrase hasn't been around for years. Asian men, Black men, Superman and men around the world do not corner the market, nor are immune to this form of "kryptonite"!!!