1. Saying 'daiz' by itself when you approve of something or are stoked about it.
2. "Daizing" or "getting daized upon" refers to getting baked.
3. Used as a way to describe supreme accomplishment.
It can be hard to define this word, as its usage can be varied and recreated based on context and who is saying it. Can also be spelled as 'dayz' or even as simply 'days' depending on the situation.
2."You wanna daiz after class? I just got a new tube."
"Oh hell yeah."
3."How'd you do on that paper dude?"
"Straight daized it. A plus"