Top Definition
A sore and/or numb sensation between the nuckle and base of the thumb caused by hitting the joystick button of a game controller for hours on end. The ailment became common after playing a classic side-scrolling shooter called, "Contra". Sometimes confused with carpal tunnel syndrome.
"I was up all night playing video games, and I woke up the next day with contra thumb."
by RobertMHoehn March 20, 2010

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