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.
Excreator: nukk?
MilkDJ: hellz yeah! nukk = you.
by Zorlock April 18, 2005
by RA tha Rugged Man September 09, 2006
Defence Nukk, a RuneScape legend. A famous RuneScape player, also known as one of the richest RuneScape players. Defence Nukk also ran RuneScape MySpace.
by lover romeo January 20, 2009