A female name shorten as a nick name for a few asian names.
Usually applied to those who have the asian name but are native English speakers such as Korean-American.
Many of those who are named Eunny are attractive and outgoing, and are not the typical "math-nerd asian".
Frank: Hey do you know Eunny?
Bob: Never even heard of the name... is he asian?
Frank: No, She's hot. Not asian.