Is when you pull-down your pants and expose your half-staff penis to another person, group of people, or while riding in a moving vehicle for others to view, then grasp the base of the penis and "wave" it to the watching people.
by Weenywaver September 5, 2006
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weeny waving • Weeny • weeny benders • Weeny Bop • Weeny Bopper • Weeny bot • Weeny-Bumper • Weeny-Do • weeny doodle • weeny peeny