A non-Asian person who is obsessed with Asian
pop music, art, fashion, etc. etc. etc. Will typically learn
snippets of Japanese in order to seem more legit and
dye their hair.
"Why did Jessica
dye her hair black, and why is she greeting me with 'moshi
moshi?'"
"Yeah, she's an Asian Fan."
"
Konnichiwa, Olivia-chan!"
"God, Amanda, stop being such an Asian Fan."