a name you would call someone who has done something wicked retahded or someone who is just a douche but in a nicer way or just another greeting when you don't want to call them by their ordinary name.
Yo Jacknutz! Hey Jacknutz! What's up Jacknutz? Where you at Jacknutz? You just spilled your beer on me Jacknutz!
by "T-ism' March 03, 2007