* It's a misspelling: It could be a misspelling of a similar-sounding word. For example, "Wanda" is a common name.
* It's a proper noun: It could be a name, either a first name or a surname.
* It's a slang term: It might be a slang term specific to a particular region or community, where it has a specific meaning.
* It's a made-up word: The word could be entirely fictional.
To understand what "Twanda" means, you'll need more context. Please provide more information about where you encountered this word or what you think it might be referring to.