It is likely a made-up word or a misspelling of a similar word.
Here are some possibilities depending on what you meant:
* Minisode: A short episode or segment, often used for television shows or podcasts.
* Mini Soda: A smaller size of soda.
* Mini Soda: A brand name of a small soda product.
Please provide more context if you can so I can help you figure out the correct spelling.