Despite major increases in the diagnostic prevalence of borderline personality disorder (BPD) in the past few decades, there is a paucity of research that provides analysis of the disorder from a socio-cultural standpoint. This conceptual analytic paper seeks to broaden the formulation of BPD by incorporating the manner in which a hyper-materialistic culture may influence the development of BPD or borderline personality features, the manifestation and meaning of its symptoms, and diagnostic considerations. After a literature review of BPD and the culture of materialism, analysis of hypothetical interaction areas are identified. Theoretical conclusions indicate the possibility of a psycho-cultural associative relationship in the areas of identity diffusion, and unstable interpersonal relationships; and to a lesser extent affective dysregulation and impulsivity. Analysis of hypothetical psycho-cultural interactions is presented in the areas of: diagnostic confusion, external self definition, power dynamics, using materials as interpersonal alternatives and from multigenerational and socio-historical perspectives. Two developmental pathways illustrating the manner in which psycho-cultural interactions may exist are hypothesized: materialistic parenting may foster an objectified, external focus perpetuating a lack of internal integration of the self, and insecure attachment, leading to borderline relational patterns; and secondly, parents with BPD may create an environment of existential insecurity leading to the adoption of materialistic values. Further, it is suggested that BPD, as it currently understood in the contemporary American society, may be more accurately formulated as a culture-bound syndrome. Finally, the limitations of the study are discussed, guidance for future research is suggested and recommendations for formulation and treatment are proposed.