1) one who tries to break apart a union by clearly and willingly stating an unpopular opinion to enrage most of the population and cause them to fight each other

2) the opposite of a union, a bunch of people who act cynical and sarcastic with each other
example of both definitions:

"Man, we were having a real great time discussing anime the other day when this uniju came in and messed everything up. It turned into a real uniju fast."
"Dude, you are such an otaku."
by club sauce February 08, 2009
1 more definition
Top Definition
Stupid kid who thinks he knows everything. He's easily offended if you don't agree with him and loves Simon the Driller.
"Shut up, Uniju"
by Tu-Eng April 18, 2009

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