someone who is a compleate and total retard can be a nukk on the other hand smeone who is extremly cool is also a nukk. Like billy mays!
Cool Kid#1: Sup Nukk
Cool Kid#2: Not Much Home Slice

Cool Kid: YOU NUKK FACE
Retard: Uh dOY doy doy errmmm ugh!
by Crazy Eddie April 19, 2005
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A nukk is an insult to call people when they do not what it means. It really has no "true" meaning. It is just another insult for stupid n00bs, and retarded people.
MilkDJ: Get out of here nukk! Your kind is unwanted!
Excreator: nukk?
MilkDJ: hellz yeah! nukk = you.
by Zorlock April 18, 2005
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Defence Nukk, a RuneScape legend. A famous RuneScape player, also known as one of the richest RuneScape players. Defence Nukk also ran RuneScape MySpace.
Damn dude, Defence nukk added me! I'm famous!
by lover romeo January 20, 2009
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