Top Definition
When one's arm is too sore or in extreme pain due to excessive masturbation. Usually interferes with everyday activities and can take weeks to recover from.
John: Dude I took like three Tylenol pills this morning

Brandon: What do you have the cold?

John: Nah, I got a bad case of the Jacker's Arm.
by Pandad March 24, 2009
5 Words related to Jacker's Arm

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