* A made-up word: Perhaps it's a playful invention, a nickname, or a term used in a specific context that you're not familiar with.
* A misspelling: It could be a misspelling of a real word. Do you have any context where you saw or heard this word?
To help me understand, please provide more information:
* Where did you encounter this word? Was it in a book, a conversation, online?
* What was the context? What was being discussed when the word was used?
With more context, I might be able to figure out what "hushamagrundy" actually means.