he's doing the effen vodka. picking a fight about diddy via instagram. >> he's saying if you drink ciroc, you'll gain weight, banging large chicks. >> not that you gain weight! >> not that you gain weight! >> iggy azalea firing back at eminem. he released a new track called "vegas." >> he says, "what's it going to be, put that bleep away, iggy." "you gone blow that rape whistle on