[waltjp]

A kangaroo court is a 'judicial' proceeding that denies proper procedure in the name of expediency; a fraudulent or unjust trial where the decision has essentially been made in advance, usually for the purpose of providing a conviction, either going through the motions of manipulated procedure or allowing no defense at all.

In sports parlance it's used to punish players for errors and other mistakes on the field. Fines are allotted, and at the end of the year, the money collected is given to charity. The organization may also use the money for a team party at the end of the season.