Same as pleading guilty, except that your plea cannot be used against you in civil court. You can only use this in traffic or criminal court. Also called nolo, which in Latin means I do not wish to contend.
A plea in which the defendant does not contest the charge. This has the same effect as a guilty plea except the conviction cannot be used against the defendant in a civil suit.
A fight that is cancelled by the referee due to a lack of effort on the part of the boxers involved is dubbed a "No Contest". Also used to classify a fight when a boxer wins but then subsequently fails a drug test.