A fork of Rural Dictionary
Able to use both hands with equal facility for the perposes of masterbation
"i can jackoff with my left hand or my right hand. I'm wankbidextrous".
The ability to achieve equal measures of Wankisfaction with either the right or the left hand.
Ben: Mate Khaiyyam broke his arm the other day, he is screwed because it's his wanking hand as well.
Josh: Should be Wankbidextrous like me then shouldn't he!