* A nonsensical word: Someone might use "wangdoodle" playfully or humorously to emphasize absurdity.
* A slang term: It could be a regional slang word with a specific meaning in a particular group or community.
* A fictional term: Perhaps it's a word used in a book, movie, or other fictional work.
Without more context, it's impossible to determine the exact meaning of "wangdoodle."
If you can provide more information about where you encountered this word, I might be able to give you a more specific answer.