Definitions by ComplexSimplicity.

Yoi! 

An interjection, used to show a positive feeling or to exlaim excitement.

1) "Yoi!"
2) "Party tonight, yoi"
3) "Yoi, how are ya?"
4) "I'm great, yoi!"
5) "I've won the lottery, yoi!"

Yoi! by ComplexSimplicity. April 12, 2009