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[Ted Maul]

Man evolves into pork product

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The phrase is a metaphor. "Pork" refers to a literal piece of pig meat, which is inanimate and incapable of learning. Applying this to a person means they are as unresponsive to education or explanation as a piece of meat.
Usage:
It's used when someone is being unreasonable, stubbornly refusing to understand a point, or displaying a lack of intelligence or common sense. It's often used in situations where someone is being deliberately difficult or obtuse.
Origin:
While the exact origin is unclear, it's described as an "old saying" from the English West Country.
Variations:
Some variations replace "educate" with other actions like "you can't reason with pork" or "you can't train pork".
Figurative sense:
The phrase is not meant to be taken literally, but rather as a colorful way to express frustration with someone who is being unteachable or resistant to reason.

Normal.