I think it means "lady killer." Because the song is talking about a girl that was killed দ্বারা a smooth criminal. just as a side note, according to the Bad25 video when Michael says, "Annie are আপনি ok" it's CPR. The first thing আপনি do before আপনি do CPR on someone আপনি ask if that person is ok অথবা not....and all the dummies Michael practiced on were called Annie!!!
he got the Id for smooth criminal cus in the recoding stode there was a box that had a CPR dummie inside all CPR dummies are named Annie so that's how smooth criminal came about