Top Definition
A person with a passionate interest in geography, maps, and geographical data visualization.
Julius Caesar is building a google maps application showing the trails where he bikes. What a geonerd.
by NOVAdadaist July 23, 2009
Someone whose life revolves completely around rocks and other boring things of that nature. (i.e. Brittani)
Brittani is a an extreme geonerd.
by Mateo de la pimpo September 08, 2005
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