What is fissa in Dutch?

"Fissa" is not a word in Dutch. It's likely you're thinking of a word from a different language. Could you provide more context or the language you're referring to?

For example:

* Is it a slang word?

* What is the general meaning?

* Where did you hear it?

With more information, I can help you find the Dutch equivalent or understand what you mean by "fissa".