Top Definition
One who derives pleasure from watching others workout so that he or she can duplicate their workout.

Commonly gets the most pleasure from doing slightly more, like an extra mile on a run, and claiming to "win".

Workout stalkers often friend you in online fitness social apps like Nike+, FitBit, or Strava so that they can easily observe their victims.

Closely related to the one upper.
Kris: "I must admit, this new competitive James is a breath of fresh air."

James: "I'm not competing."

Kris: "You are. You're doing real good with the running and the biking lately. Your Nike Fuel is being earned really good."

James: "Dont be such a workout stalker."
by ThrilledAtHome June 20, 2013

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