"Popping the trunk" (Eminem – 2.0 Boys) | accepted

*mixtape ^

"When I throw up 16's like I drink liquor" (Eminem – 2.0 Boys) | rejected

as verbal vomit

"Getting head like clean clippers" (Eminem – 2.0 Boys) | accepted

"Move to the beat of the same drum without Lex Luger" (Eminem – 2.0 Boys) | rejected

and how redundant his rhythms are.

"Must be outta your mind, you think you fucking with us" (Eminem – 2.0 Boys) | accepted

Also, a reference to the Slaughterhouse song “Nobody Fuckin' With Us” off of Royce Da 5'9’s Bar Exam 3.

"Will I ain't" (Eminem – 2.0 Boys) | rejected

because Will.I.Am has a “good guy” image. Eminem is the opposite.

"I like writing, but I will stick this pencil in your ass ..." (Eminem – 2.0 Boys) | accepted

This is actually a metaphor indicating how he would rather literally scribble on your defecation than write a verse for you (because you suck).

"I need a doctor, doctor to bring me back to life" (Dr. Dre – I Need a Doctor) | accepted

This can also be representative for Hip-Hop’s crying out for Dr. Dre to come back with his legendary music and put Rap back in the state where it belongs.

"You gave me a baby, but what about lately / Then ha ha ha..." (Lupe Fiasco – The Coolest) | rejected

Can I hear you say
“The cruelest nigga, what?”

"I got back wit her, you fucked it up, by lettin her know ..." (Tech N9ne – Worst Enemy) | rejected

Also, one calls an enemy a “buster” as in to say “jerk”. But he calls his dick a buster because it literally BUSTS (which is slang for ejaculating).