plea bargain (Noun) — (criminal law) a negotiation in which the defendant agrees to enter a plea of guilty to a lesser charge and the prosecutor agrees to drop a more serious charge. ex. "his admission was part of a plea bargain with the prosecutor"
plea bargain (Verb) — (law) agree to plead guilty in return for a lesser charge. ex. "If he plea-bargains, he will be sent to a medium-security prison for 8 years"