gnognog is the act of repeated sexual thoughts that a man get when a classy woman passes in front of a all male establishment. ie: auto garage, sports bar, construction site, and such.
EX:#1 As the Boho passes the Big Dig construction site worked stopped for a moment because of the brief gnognog.

Ex:#2 When John came home his wife realized he had a gnognog today because he was in a exceptional mood.
by Nookie McDoogle September 22, 2007
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