* A misspelling: Perhaps you meant "willow" or "wallow" which are both common words.
* A regional dialect term: It could be a slang word or regional term specific to a particular area.
* A fictional term: It might be a term from a book, movie, or game.
Could you provide more context?
For example:
* Where did you encounter this word?
* What was the context surrounding the word?
* Is there any other information about the word you can share?
With more information, I might be able to help you figure out what "willywaugh" means.