* A misspelling: Perhaps the intended word was "yahoo," which is a slang term for a rude or uncouth person, or a person who is considered foolish or naive.
* A slang term: It could be a regional slang word or an online slang term that is not widely known.
* A made-up word: It's possible that someone created this word for a specific purpose.
To understand the meaning, you would need more context.
For example:
* Where did you encounter this word? (a book, a conversation, online)
* Who used it?
* What was the situation?
Please provide more information so I can help you understand what "yahootie" might mean.