A term used to describe someone who gets all psycho and stresses about a boy, sometimes characterised by ‘snap map’ stalking and behaviours similar to an FBI agent, when said person believes a boy does not like them (even thought he probably does) or when said person wants to know if a British soccer boy is seeing yet another freshman.
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