Omnidextrous
Able to use all limbs with equal precision; both hands and both feet.
"Mark says he can give four autographs at once. He must be omnidextrous!"
omnidextrous
Having omnidexterity; able to control every hand, regardless of owner, with relative ease.
Blue: Are you right-handed, left-handed,or ambidextrous?
Red: I'm omnidextrous
Blue, their hands raising into the air: Ok what how
Red: I'm omnidextrous
Blue, their hands raising into the air: Ok what how