Why I'm gon' squash them and kill every poor thing
Cause I'm a huge, Pillsbury dough mane

from Tech N9ne – He's A Mental Giant Lyrics on Rap Genius

Meaning

Pillsbury is a company for making baking products as food recipes with dough. Tech N9ne makes “dough” (money) and figuratively compares his income to the company. Their mascot is known as the Pillsbury Doughman.

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