ambidexter. 1. A judge or embracer who takes bribes from both sides in a dispute. 2. A lawyer

who abandons the party that he or she initially represented in a dispute to represent the opposing

party in the same suit. 3. A person who engages in double-dealing.

“Ambidexter is he that, when a  matter is in suit between  men, takes money  of the one side

and of the other, either to labour the suit, or such like; or if he be of the jury, to give his verdict.”

William Rastell, Termes de la Ley 28 (1st Am. ed. 1812). [Blacks Law 8th]