Answer: Sounds as though your mega-squash is a hybrid so there's no telling how big it might get! Squash cross-pollinates easily and seeds from a cross-pollinated fruit can result in any manner of interesting new varieties. If it were in my garden, I'd watch and wait to see what happens. However it looks and whatever its size, it will be edible. Don't save the seeds and replant, though, because its offspring will be completely different. Enjoy!
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