When Mos wrote this song in 1999, he was likely anticipating that either Eris or the mysterious Planet X would become the 10th. However, we have actually lost a planet since then rather than gained one, as the former 9th planet (Pluto) was reclassified as a dwarf planet in 2006.

“Crunk” is a slang word that originated in the South meaning “crazy drunk”. It can also describe bass-heavy club banger type songs that first became popular in the Dirty South.

Business Insider showed just what it’s like to live on food stamps.

Food stamps might help you feed yourself, but its not enough to raise a baby daughter. Since Rabbit has no daughter in the movie, this line makes it clear that the third verse is now about Eminem’s life, not just some song for a soundtrack.

This track was produced by DJ Premier (nicknamed “Preemo”), one of the greatest hip-hop producers of all time.

Also “primo” is “cousin” in Spanish, so Mos Def could be referring to him as family, or a close friend. In Spain, they sometimes refer to cousins or close friends as “primo.”

Finally, with the phrase “Su-Preemo,” Mos Def is making a word play that points to the spanish word “supremo,“ which means supreme.

A genie is a magical being that lives in a lamp and grants its master 3 wishes. If you’re a nice guy, you’ll use your last wish to release the genie from his lamp. (Source: Disney’s Aladdin). The point being here is that Bob is desperate to find a way to achieve his dreams.

A group of less rich people see Nelly rocking expensive jewelry, and decided to either silently resent his wealth or to openly call him out.

While “survival of the fittest” is generally attributed to Charles Darwin, Herbert Spencer was the first one to coin the phrase. It was an adaptation of Darwin’s original quote “Preservation of Favoured Races in the Struggle for Life” from his Origin of Species. The meaning behind it is that the only way to survive is to be able to adapt to your environment; that applies to both Galápagos tortoises and gangsters.