Play on the previous line “get into them jeans”

Poetic Genes/jeans is what it Seems/seams for like “Jean seams”

Cakes is a southern term for girls with fat ass.

Raw uses sheets as a metaphor/double entendre for getting into cake sheets, and getting into bed sheets to have sexual relations.

Raybans are a type of glasses.

Glasses go on your face.

Raw was born on St Patricks Day. March 17th.

Green as reference to money

Irish wear green.

Raw legal birthday is March 17, St Patricks Day.

Reference to money.

New whip with the top off, convertible, no roof.
Whip is a term of slang for car.

Eating dessert, comparing New Whip to Cool whip, often used for pies.

I want it all. I put my heart in this DRIVE of mine until I re-TIRE.

Won’t stop until I’m old and rich. Play on words with retire.

Reference to the movie/comic “Ghost Rider”

Optimus Prime is the leading protagonist in the series “Transformers” and the head of the Autobots.

Raw compares himself to the strongest and wisest transformer in the series and uses his name to state he’s in his prime.

Prime being the top of his rhyme game, elite in all areas.

Why would I change?

Change as alter, transform,
Change as in coins, dollars,

Bums ask for change.