What I'm getting is that she's calling out men in hip hop who act fake. They want the fame, recognition and lavishness all while putting out this front of being tough. Nicki has worked hard and is calling herself real, therefore calling out men who only use her and envy her for becoming more successful than them, all while being herself.
It sounds good but I'm really not so sure how to feel about her excessive use of the n-word. I know it's not said in a form of hate but this is a song people will undoubtedly be singing along to at homes, on the streets, in the clubs etc. You can't really avoid saying the word if you're singing the song. It just feels weird and takes away from the song. Also the repetition isn't very interesting on its own.