* It's a misspelling: There might be a similar-sounding word you're thinking of.
* It's a regional slang or dialect: The word could be specific to a certain region or community.
* It's a made-up word: It's possible the word is a playful invention or a fictional term.
To understand the meaning, you'll need more context. Please provide more information:
* Where did you encounter this word? (e.g., a book, a song, a conversation)
* What was the context? (e.g., what were the surrounding words, the overall topic)
With more details, I can help you determine the meaning of "matargashti."