👉 In legal terms, a "peremptory challenge" is an argument that a judge or jury might make in response to a defendant's defense. It is generally used when the defense does not present evidence or arguments that would be considered by the court, such as a lack of proof or circumstantial evidence. Peremptory challenges are an essential aspect of trial procedures because they allow the judge to decide whether to strike out a defendant based on their race, religion, sex, or national origin.