yee

The thing all my friends which are graffiti artists say, especially on other peeps' pieces.

"I just put up a huge mural in the abandoned SFNO!"
"Yee"
------
"Dude I flicked your train last night out the window of the restaurant I work at!"
"Yeeeeeeeeeeeeeeee!!!"

Yight

Slang term for "Are you alright?"
Evolved from the aforementioned phrase through linguistic butchering.

Person 1: *falls off of roof*
Person 2: "Damn dude! That was a hard fall! Yight?"