Someone who is sexually attracted to people based on their christian name. Attracted either because of the rarity of the name, tone of how it's pronounced, or general sexiness (eg. Spike, it ticks all the boxes)
Namesexuals always like their own name, if they don't like their own name they can't masturbate. So sad.
Guy: hey bro what did you think of Summer? will you go on a second date?
Namesexual: Oh Hell No! that bitch's name sucks dick!
Guy: does that matter?
Namesexual: yeah bro, I'm a Namesexual.
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