the ability to use both feet with equal skill. much like ambidextrous, but with one's feet.
dude 1: "DID YOU HEAR ABOUT KIKI?"
dude 2: "NO WHAT HAPPENED?"
dude 1: "SHE WAS WRITING SO FAST THAT HER HAND JUST FLEW OFF. NOW SHE'S FORCED TO BE AMBIPEDDEXTROUS"
dude 2: "NO WAY!"