Possible Duplicate:
Origin of “hating on”
Recently I've noticed an increasing use of the phrase to hate on [someone].
From what I can tell, the addition of on implies a jealousy or dislike for another person's talent or status. It doesn't appear that to hate and to hate on are directly interchangeable; one wouldn't say "I really hate on the taste of fish" for example.
The verb to hate was previously sufficient as far as I was aware, so where has the addition of the preposition on come from? My guess is America, but does anyone know where and when this originated?