Black's Law definition of collusion:

A deceitful agreement or compact between two or more persons, for the one party to bring an action against the other for some evil purpose, as to defraud a third party of his right Cowell.

A secret arrangement between two or more persons, whose interests are apparently conflicting, to make use of the forms and proceedings of law in order to defraud a third person, or to obtain that which justice would not give them, by deceiving a court or it officers.

Baldwin v. New York, 45 Barb. (N. Y.) 359; Belt v. Blackburn, 28 Md. 235; Railroad Co. v. Gay. 8G Tex. 571, 26 S. W. 599, 25 L. R. A. 52; Balch v. Beach, 119 Wis. 77, 95 N. W. 132.

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