It could potentially be:
* A misspelling of another word.
* A regional slang term used in a specific place.
* A made-up word for a specific purpose, like in a fictional story or game.
Could you please provide more context? For example:
* Where did you hear or see this word?
* What was the context surrounding its use?
With more information, I might be able to help you figure out what "birijita" means.