Top Definition
The top of the nerd heirarchy. Meaning more nerdier than a UltraNerd, SuperNerd, and also a Nerd. They are obsessed with computers and lack social skills. They may also be completely obsessed with linux and spit on the ground that Bill Gates walks on.
OMG! there is Russell again talking about linux. He is such a GigaNerd.
by crazy4harrypotter March 29, 2006

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