When your dominant arm is more buff than your non dominant due to the effect of oftenly masturbating.
Man: "I swear, my left arm is strong, but it doesn't look like it compared to my right."
Man 2: "How often do you beat the meat? Sounds like a case of Muscle Jerkitis."
Man 2: "How often do you beat the meat? Sounds like a case of Muscle Jerkitis."
by Sid Phillips June 25, 2017
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