What does dameda mean?

"Dameda" is not a word in any standard language. It's possible that you might be thinking of:

* "ダメだ" (Dameda) in Japanese: This means "It's no good," "It won't do," or "It's impossible."

* A misspelling of another word: It's always possible that "Dameda" is a typo.

If you can provide more context, I might be able to help you figure out what you're looking for.