NJZ 

Stands for "No Joke Zone". Thought up by the author of "Odd Girl Out"

Use it to stay clear of bullies, be sure to use the NJZ term whenever you feel violated. You can talk to your friends about what it means so you can take eachother seriously and only use it when it's a No Joke Zone.

"I hope you get ran over by a car."
"Dude, that was an NJZ"

NJZ by The Scrapolopolopogis's May 4, 2006

NJZ 

abbreviation for "No Judgement Zone" - meaning this is a place where you can speak and act freely without fear of judgement; met with understanding and empathy

Speak your mind. This is an NJZ.

NJZ by letsBeRealNow58 May 3, 2014