Norman Bates is the killer in Alfred Hitchcock’s Psycho (1960). “Psycho Killer” is a track off of Talking Heads 77 which is often associated with the paranoid style in late Seventies New York pop culture

“Spangled”=bedazzled. She is a star, studded with jewelery

Minaj’s rise to stardom is the new American dream, hence the pop patriotism

The “buh-buh-buh” stutter is reminiscent of Lil Wayne’s vocal stylings on “A Milli”

It takes a helluva lot of swagger to call yourself “the rap Hannah Montana” (i.e. young, cute, preternaturally confident on-stage)

The comparison also hints at a duality in Nicki’s hard persona: Hannah Montana is the alter ego of Miley Stewart (Cyrus). Minaj, who attended LaGuardia High School, the Fame-d New York City public high school for the performing arts, probably sees her own rise to fame in Miley Cyrus' career trajectory. The difference between Onika Maraj and Nicki Minaj is analogous to that between Kimberly Jones and Lil' Kim or D'wayne Carter and Lil Wayne

Nicki Minaj is also known as Nicki Lewinsky, a personal choice that is probably best left in her own words:

People are gonna hear that name and be like ‘Oh my God, this bitch is a bird,‘ but check this out; this bitch got in the same room with the President of the United States of America. People don’t look at that on the large scale and just see that she was giving him head. I knew it was gonna get attention and people would have to something to say but you gotta understand… I’m with the president of Young Money, the hottest rapper in the world right now. Monica was able to get at the biggest person in the world and she had him to herself. She could’ve used that to her advantage but she didn’t and that’s a sad story. Nicki Lewinsky is a different story

“Titties sitting” is just a nice turn of phrase. Biting may not a nice turn to take with a new partner

Double entendre: Juvenile is a hitmaker, in that he makes hits (recordings) and “hits that” (ass). The choppy beat also evokes hits, like a march beat with extra emphasis on the word “hit” on the backbeat, which gives the bounce somewhat of a syncopated feel

A roll of the tongue resembling a jackhammer (“brrrrrrm”) replaces “motherfucking” on the radio edit (“Back That Thang Up”). I think I prefer the onomatopoeia, which was arguably the best part of the song

The co-founders of Juvenile’s label, Cash Money Records, were the Big Tymers (Birdman & Mannie Fresh)