People who have extra chromosomes and are best friends. "Chromie" referring to chromosome and "homie"s referring to " people who are good friends and would die for each other".
People who have extra chromosomes and are friends are considered extra chromie homies. Yesterday, John and I went into the extra chromie homie room by accident.
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