Used generally by the furry culture to mean cum (semen). (also) Regularly used by people who identify as furries. How this word wws developed noone knows. You generally dont use this word unless you want to seem submissive. Some use it sarcastically along with the phrase uwu.
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