Here are some possibilities:
* Typo: Perhaps you meant "view" or "you".
* Slang: It might be a slang term used in a specific online community or region.
* Misheard word: You may have misheard something similar-sounding.
To understand what "yiew" means, you need more context.
Please tell me:
* Where did you see or hear this word? (e.g., a website, a conversation, a song)
* What was the context? (e.g., what were people talking about, what was the situation?)
Knowing more about the situation will help me figure out what "yiew" means.