gezoner 

When an old man or "geezer" gets a "boner". Either a "natural boner" or one by way of a libido enhancing drug.

Look at that old dude checking that young chick out, I bet he has a gezoner!

Gramps probably can't get a gezoner without taking Viagra!

gezoner by NW Babe January 30, 2009

Geonerd 

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.

Geonerd by NOVAdadaist July 23, 2009

geonerd 

Someone whose life revolves completely around rocks and other boring things of that nature. (i.e. Brittani)

Brittani is a an extreme geonerd.

geonerd by Mateo de la pimpo September 24, 2005