
It refers to the lawsuit filed by someone who pretends to be a opposer of the contest and who wants to cunninly get an advisory opinion from the court by means of tricking or deception. If the judge finds it so, he/she may dismiss the case.
Found on
http://www.encyclo.co.uk/local/21213

A lawsuit brought by parties pretending to be adversaries in order to obtain an answer to a legal question or a precedent-setting decision from the court. The action will be dismissed if a judge determines it does not involve a true controversy.
Found on
http://www.nolo.com/dictionary/collusive-action-term.html
No exact match found.