Top Definition
1)a guy who got kickd out of the nukeboys clan then got then managed to go over to the agn clan and has a nickname there and at xil that is hacked
he is a total noob he doesn't know very much bout computers

2)aka connor halliday
3)a n00bish thing to pull off
1) I am such a dnukem90 i lost out on a clan and am going no where here
2) Hey connor er.. dnukem90
3) ROFL You lost a finger cutting a watermelon- you dnukem90
by cheeto January 10, 2005
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