The present research is planned to operationalize and domain specification of antisocial behavior among Pakistan athletes. Sixteen eligible participants from Punjab, Pakistan were enlisted for two homogeneous focus group discussions using purpose sampling technique. All the steps in design and protocol of focus groups were followed. The question was posed: Can you briefly define, what antisocial behavior means to you? The data were analyzed according assertions content analysis in terms of three units; sampling units, recording units, and context units. Conclusively, a newfangled definition is formulated "Antisocial behavior among athletes defines as actions or conduct that deviate from accepted societal values, norms, and the principles of sportsmanship. It encompasses behaviors that are disruptive, harmful, or go against established rules and expectations within the sporting community. This includes displaying aggression, causing harm to others, engaging in negative communication, and exhibiting a lack of respect or cooperation with teammates, coaches, rivals, or the broader sporting environment. Antisocial behavior in sports undermines team unity, breaches ethical standards, and compromises the fairness of competition, leading to negative consequences for individuals and the overall positive atmosphere within the sporting community". This research also concluded that antisocial behavior among athletes cover four domains; (1) aggression and harmful conduct, (2) negative communication, (3) lack of respect and cooperation, and (4) rule violations and unethical behavior.