n. where two persons (or business entities through their officers or other employees) enter into a deceitful agreement, usually secret, to defraud and/or gain an unfair advantage over a third party, competitors, consumers or those with whom they are negotiating. Collusion can include secret price or wage fixing, secret rebates, or pretending to be independent of each other when actually conspiring together for their joint ends.
A secret arrangement wherein two or more people whose legal interests seemingly conflict conspire to commit Fraud upon another person; a pact between two people to deceive a court with the purpose of obtaining something that they would not be able to get through legitimate judicial channels.
The fundamental societal objection to collusion is that it promotes dishonesty and fraud, which, in turn, undermines the integrity of the entire judicial system. The Free Dictionary by Farlex