* It's a misspelling. Perhaps you meant a similar word like "ducho," "duhou," or "dujo"?
* It's a slang term or regional expression. If you heard it used in a specific context, it could be a local slang term.
* It's a word from a fictional language. If you're reading a book or watching a show that uses made-up languages, "duho" could be a word from that language.
Please provide more context about where you encountered this word so I can help you figure out its meaning. For example:
* Where did you hear or read this word?
* What was the context of the word?
* What language do you think it might be from?