* A misspelling of "money". This is the most likely explanation, especially if you saw it in a casual context like online chat or a text message.
* A regional dialect word. Certain areas might have unique words, but without more context, it's hard to say for sure.
* A nickname or made-up word. Some people use unique names or terms for things.
If you could provide more context, I might be able to help you understand what "mowey" means. For example:
* Where did you see it? (A website, a book, a conversation?)
* What was the overall topic?
* What was the sentence it was used in?
This information would give me a better idea of what the speaker or writer intended.