Essentially, a substitute for "no" or "not."
Nezzie (for times when simply "nez" is too curt. Think of it like as "nope" as opposed to "no)
Nezzzzzzz (for emphasizing how "nez" you are feeling. Compare: "noooooooo")
Hey, did you finish the chem homework?
You must be joking, I am nez about that life.
Come to Starbucks with me.
Nezzie, sorry, I have stuff to do.
Guys, I just hooked up with Tom's sister!
Dude, that's nez okay...