Man we eatin', where's your breakfast?
Man, you hungry have this sandwich, got my wallet, cheese and lettuce

from Childish Gambino – Freaks and Geeks Lyrics on Rap Genius

Meaning

The eating/breakfast line continues the Eggo waffles thematic.

Cheese and lettuce are slang terms for money. This play on words makes the image of having money (“we eating”) more literal.

Money is also called bread, making his wallet sandwich complete.

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