Final answer:
The author most likely makes reference to "zumcarts" in order to create a fictional or imaginary object or concept within the context of their writing.
Step-by-step explanation:
The author most likely makes reference to "zumcarts" in order to create a fictional or imaginary object or concept within the context of their writing. This technique is often used by authors to engage the reader's imagination and make the story more interesting. By introducing a made-up word like "zumcarts," the author can add whimsy, uniqueness, or humor to the text.