She/He is a shy person in front of people they don't know (Like teachers and strangers). They are actually very introverted. When in front of their friends, they will be very outgoing even tho that is not how they actually are. They are very kind and might be a bit insane. People admire them too!
(No, this is not the actual definition, this is for a meme, and this is according to all of the people that I've meet that is ybill. The meme is: Take out the first and last letter of your name. I'm also a ybill!)
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi