boss: james you have been off work for the past 3 days, why?  james: conker-arm  boss: a worthy cause
the affliction upon the rear of the forearm from repeatedly missing a swing during a game of conkers and hitting your arm
"boss: james you have been off work for the past 3 days, why?  james: conker-arm  boss: a worthy cause" What is the definition of "conker-arm"?