The ability to discern individuals of different Asian countries and cultures apart from one another. This term is similar to the term “gaydar” and both of these terms originate from the word “radar.”
This trait is stereotypically absent in people with little contact with different asian groups.
Richard: Bryan how can you tell all these Asian people apart from each other; they all look the same to me?
Bryan: it’s called A-dar, and it’s not some special skill, Asia is huge and these people have very different cultures and varied physical appearances.