Today, the other meaning of yellow cab: 
Yellow cab (Ierō Kyabu?) is a term referring to an ethnic stereotype of Japanese women, and by extension other Asians, suggesting that they are sexually available to foreign men. The term combines the use of “yellow” to refer to Asians and the image of a yellow taxicab which can be “ridden at any time.”
It specifically refers to wealthy women who travel overseas or to foreign enclaves in Japan seeking to meet foreign men.[1] The term is believed to have been coined by the targets of such women in the late 1980s, but it was quickly appropriated by the Japanese media as a way of sensationalizing and censuring the women’s behaviour.

another “MUH DIK” post from Charles
not as interesting as the yellow cab cocaine ring that operated in seattle.
I need directions to this bar, it is of my interests.
Oh Japan, always remain steadfast in your world-leading efforts to further marginalize and demean women.
There are promiscuous and assertive Japanese women? That’s news to me.
“Everyday” != “Every Day”
Charles needs to make some Asian friends…I’ve known of this term for years…
I rode a Yellow Cab this weekend; twice. Will probably ride it again.
What do I mean?
What if my “yellow cab” was green and covered with advertising?
After reading the Wikipedia article, I am fairly certain that use of the term ‘yellow cab’ is another of those special, special ways Japanese society has come up with to scold Japanese women about having sex – particularly with gaijin.