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1.
Similar to jizz, but much larger.
Juzz is essentially a large scale jizz.
Busting a HUGE = juzzing.
The mess of a huge bust = juzz

It is sometimes used to describe pwnage in video games.

Rohan "Dude, did you hook up with that hot chick?"
Jason "Yeah I totally juzzed in her face while getting a BJ!"

Eheems "Man, I just juzzed on that n00b with a plasma 'nade"
by Johnny B.Goode March 17, 2008
 
2.
1) Facial hair that looks similar to pubic hair
2) Any remnants of semen with pubic hair stuck in it
You got a lil juzz on ya
by Ian Broswell May 25, 2010
 
3.
Douchebag

To be a complete and utter douche
Man hes bein such a juzzbag
by Juzz is a douche January 03, 2008