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Sort of like Russian roulette, with Asian girls.

Asian roulette is where you hook up with an Asian girl, then find out later whether you committed a crime.

It is a well-documented, scientific fact that Asian females of the human race look the same from age 16-50. Google "Average asian aging process" for relevant periodicals
Example 1:
In a bar with a lot of Asian girls of unverified age: "Who's up for some Asian roulette?"

Example 2:
Person A: "Whoa that Asian girl is hot"
Person B: "Only problem is its impossible to tell if Asians are 18 or not"
Person A: "Asian roulette!"
by chingchongchinaman October 09, 2012