How to spell ROLLYDBY correctly?

If you find yourself typing "rollydby" instead of the intended word, there are a few possible correct suggestions. It could be "rolly-polly", referring to chubby insects. Another option might be "rolly derby", describing a type of roller derby competition. Lastly, you could have meant "rolly-dolly", a colloquial term for a wheeled dolly used for moving heavy objects.