Chappelle Show had a skit mocking MTV's show Making The Band. Chappelle, acting as original show cast member Dylon, continuously repeated the phrase "I spit hot fire".
"I've always been amazed that people forced to live in the worst parts of town go to bad schools and who have it the hardest are always the first to step up" People from bad soul testing neighborhoods usually have a strong backbone
Ichabod Crane is the character who was the Headless Horseman in the novel The Legend of the Sleepy Hollow. Lupe is metaphorically like Ichabod Crane because he satirically claims to not have a brain, in other words making fun of dumb rappers.
this is a reference to children in some foreign countries being recruited and trained in the military well before the age of 18. here they are being rewarded with a soccer ball for killing 5 people in the enemy's army