What is Billie Jean?
1.
Anybody who is not Michael Jackson's lover.
Billie Jean is not my lover, scumbag!
2.
70's and 80's term for women who feverishly stalk male celebrities. Groupies
Those Billie Jean kept throwing their panties on the stage.
3.
a woman that has a son/daughter that is in denial by the son's/daughter's father.
It refers to the song, Billie Jean, by Michael Jackson.
4.
The name you scream when you want to make-out with a special someone and they feel the same way but you dont want anyone else to know what you mean.
When in a public place, most likely your high school, you want to Billie Jean with your lover so you shout the name instead of actually doing it.
See
5.
Michael Jackson's stepchild.
His abandoned child that he has not gained custody of.
"BIllie Jean is not my lover, oooh!!"