A version of the more common ailment, Tennis Elbow, most often developed over time by shaking one's napkin at a high rate of speed. The Napkin Elbow epidemic took New York City by storm in the early 1990's when world class musician, Jorge Buccio, wrote now famed hit, "The Napkin Song". Many patrons of the Little Italy birthday destination, Puglia, leave the restaurant with chronic Napkin Elbow.
Damn, I can barely pick up my connoli, I hope it's not the Napkin Elbow.