* It's a misspelling: There might be a similar word in a specific language that you're thinking of. Can you provide more context or the language you're referencing?
* It's a regional term: It might be a slang or colloquial term used in a specific region or community. If you know where you heard it, that might help.
* It's a made-up word: It's possible that the word is a made-up term, perhaps for a fictional story or game.
Please provide more information so I can help you understand the meaning of "tibayo."