"To fight the lawsuit" means to defend oneself or one's interests in a legal case, typically by presenting arguments, evidence, and counterclaims in order to protect oneself from legal consequences or seek a favorable outcome. Full definition
If for whatever reason you don't want to fight a lawsuit against you, it can be ignored. (lrlawoffice.com)
You can bet the drunk driver will hire skillful counsel to get them out of their DUI conviction and fight any lawsuits brought against them. (myvirginiainjurylawyer.com)
Even if you do have the time, the energy you spend fighting a lawsuit would be better served focused on your recovery. (citywidelaw.com)