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1.
Used to decribe very impressive computer hardware or perhaps a complete system. More impressive than sick, and more powerful than awesome. Good, in a multi-facetted way.
"That system is sick awesome! Can I touch it?"
by Functional-PC July 26, 2005
 
2.
Something that is too great for you to discribe with only the words sick, or awesome.
Dudebro! Thats totally SICKAWESOME!!!!!!
by K-Dawgz September 16, 2006