1.Similar to the 'instafan'. Someone who takes a look at a Japanese band and instantly likes them for the way they look. They don't even listen to the music, which is what a band is about, even if they're visual key, listen to the music also people.
2.Someone who poses as a Japanese person. Loving everything to do with Japanese, when in reality they're just doing it because the crowd is doing it.
1. Random girl: I love Dir en grey, they're all so cute! :annoying squeal:
Random actual fan: Man, you're such a Japoser, listen to the freakin music before you even consider talking to me about Dir en grey.
2. Look at that Japoser over there, she didn't start dressing as a lolita until the Japanese crowd did.
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