Noun: Kangaroo court (kang-uh-ROO-KORT)
1: A mock court in which the principles of law and justice are disregarded or perverted.
2: A court marked by irresponsible, unauthorized, or irregular status or procedures.
3: Judgment or punishment given outside of legal procedure.
Example sentence: The press decried the tribunal as nothing more than a kangaroo court, meting out savage and arbitrary justice.