The medical condition that occurs from masturbating arduously to the women's tennis championships. During this session, most people are in the living room and have to bend over to masturbate, as not to get spotted through any windows. This creates an acute angle with the shoulder, elbow, and hand. This puts tension on the elbow and results in tendinitis or tennis elbow. Both males and females suffer from the condition as women in short skirts are attractive no matter who you are.

when you swing to hard or jack off

a lonely ass who has nothing better to do all day than wank off too hard