This study looks at how foul and rude language in David Mamet's American Buffalo serves as a vital tool for dramatizing power dynamics, economic marginalization, and ethical deterioration in addition to serving as realistic dialogue. The study poses the following questions: how does impolite, aggressive speech enact societal critique of capitalist marginalization, and how does it represent characters' socioeconomic positions? The study's methodology is qualitative and interpretive, combining macro-level discourse/power critique, meso-level sociological interpretation (based on Pierre Bourdieu's Theory of Capital and social fields), and micro-level linguistic analysis (using Culpeper's Impoliteness Theory). Recurring face-threatening behaviors—profanity, threats, coercive orders, and nihilistic tirades—that serve to establish dominance, negotiate survival, or convey despair are revealed by an analysis of a few sections. At the meso-level, this kind of language reflects the characters' unstable social and economic circumstances, turning trust into suspicion and interpersonal interactions become transactions. The discourse in the play is a macro-level representation of larger structural injustices, alienation, and moral disintegration brought on by capitalism pressures. The analysis comes to the conclusion that rude language in American Buffalo is neither incidental nor merely artistic; rather, it is an integral part of the play's social critique, revealing how the marginalization of capitalism diminishes human dignity, ethics, and solidarity. The study emphasizes dramatic language as a potent medium for portraying social reality and emphasizes the methodological usefulness of combining linguistic pragmatics with sociological and discourse-power theory in literary analysis.
