• Hmm, I don’t see how semicolons work in this sentence.

    Marking up the sentence with extras to help visualize:

    Buffalo-buffalo (who) Buffalo-buffalo (do) buffalo (in return also) buffalo (the other) Buffalo-buffalo.

    A sentence of similar structure, subbing components for others of the same language parts…

    • Buffalo buffalo → other nouns qualified by adjectives
      • Foreign cars
      • Austin techbros
      • big money
    • buffalo (verb) → other verbs
      • covet
      • cost

    … would be:

    Foreign cars Austin techbros covet cost big money.

    (edit: I couldn’t quickly think of a location adjective for the last noun, which would have stuck to the pattern more closely, but “big” is still the same role, an adjective.)