A term commonly used by rapist to show who their next victim is. If some one is called a "baby babooshka", he or she is probably, or going to be, a victim of sexual abuse.
Luna: "Look at that Baby Babooshka! I'm going to take him home!"
Jeff: "I'm calling the police."
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