Definition - What does Counterclaim mean?
Counterclaim is a court paper filed by the defendant against the plaintiff. It claims that the plaintiff is actually partially or wholly responsible for the consequences which resulted in a case. It also claims that rather than the defendant, it is the plaintiff who owes the defendant money or relief.
Justipedia explains Counterclaim
A counterclaim may be based on incidents and proofs entirely different than the plaintiff’s. It can be explained with an example of an accident case where defendant files a case against the plaintiff claiming that it was actually plaintiff caused the accident.