What is a kangaroo court?

A kangaroo court describes sham judicial proceedings which are conducted without giving the rights of defence to the accused by invoking the expediency clause. In this process, prosecution cases are taken up without witnesses and cross-examination. As the trial proceeds by leaps like a kangaroo, it is known as kangaroo court. It may also mean punishing players in sports with fines for coming late and other minor mistakes. Fines collected are given to charity.