* It's a misspelling: Check your source for any potential typos. Maybe it's meant to be "disco" or something similar.
* It's a specific term: It could be an abbreviation, slang, or a term used in a particular field.
* It's a made-up word: Perhaps it's a fictional term from a book, game, or other creative work.
To understand what "Nadisco" means, please provide more context. For example:
* Where did you encounter the word? (Book, website, conversation, etc.)
* What was the surrounding text?
* Do you have any other information about the word's meaning?
With more context, I can help you determine the meaning of "Nadisco".