* A misspelling: Perhaps you meant a similar word like "sponge" or "spunch."
* A slang term: It could be a slang word specific to a certain region or group.
* A made-up word: It might be a word created for a specific purpose like a game, story, or joke.
To understand what "sponch" means, please provide more context. For example:
* Where did you encounter this word?
* What was the situation?
* Can you give me a sentence where it was used?
With more information, I can help you decipher its meaning.