1.0 link Rainbow Dash Network http://rainbowdash.net/ Cerulean Lulamoon-Spark (ceruleansparkold) http://rainbowdash.net/ceruleansparkold http://rainbowdash.net/notice/1872074 I don't really understand the origin of RBD as an abbreviation for Rainbow Dash. Rainbow is one word, and there aren't any other characters on the show that share her initials. How'd it originate?