Rainist
A follower of K Pop King 비 also known as Rain. He starred in Speed Racer and more recently Ninja Assasin.
I love Rain's song Rainism...so I'm going to become a rainist!
Rainist
Discrimination by an individual, community, or institution against an individual named "Rainb0att", with a good reason
USAR is Rainist against Rainb0att