Here's what we can break down:
* "Walla" is a word used in some languages, particularly Arabic, as a way of emphasizing truthfulness or swearing by something. However, it's not a common English word.
* "Anuman" doesn't have a clear meaning in English. It might be a misspelling of a word or a term from a specific language or context.
To understand what "walla anuman" means, we need more information:
* The source of the phrase: Where did you encounter this phrase? Was it written or spoken? What language was it in?
* The context: What was the situation around the phrase? Was it used in a conversation, a book, a song?
Please provide more details so we can help you understand the meaning of "walla anuman".