Z can be used in multiple different contexts and its meaning can only be recognized by the way someone says something. Typically it is used as an insult or a way to describe something as "bad" but can still be used in ways that can mean it as a good thing as well.
Why are you being z right now?
Dude that's so z
Z shut the fuck up
How z were you last night at the bars?
Awesome job z!
Any misguided individual who is in blatant denial and/or so completely deluded as to be completely beyond reasoning with. Sometimes used to address just any hapless individual.
"Yeah... You just keep telling yourself that, Z."
a very pretty girl, especially a blonde. She is perfect and everything that you want in your life.
Z is the most superior letter in the alphabet. It can also make your bullies cry
Bully #1: Loser!
You: Z
Bully #1: *cries*
Z is the letter that every special person has in their name.
I love z so much! Her messages makes me smile and I love her sm.<3