Top Definition
(n.) Visible excitement regarding the activity at hand. Generally caused by, but not limited to, working out, especially in awkwardly short shorts.
It's unsettling to be trapped on a treadmill 5 feet away from a guy with his workout boner for fitness.

I have such a workout boner for Qdoba right now.
by CaptFishsticks January 22, 2014
5 Words related to Workout Boner

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