Ambidexter

Am·bi·dex·ter

Ambidexter

a.
  1. Using both hands with equal ease.

Ambidexter

n.
  1. A person who uses both hands with equal facility.
  2. A double-dealer; one equally ready to act on either side in party disputes.
    The rest are hypocrites, ambidexters, so many turning pictures -- a lion on one side, a lamb on the other.
    — Burton.
  3. A juror who takes money from both parties for giving his verdict. (Law)