We argue that Lacanian psychoanalysis offers critical psychology a fundamentally subversive orientation toward mainstream psychology. While interdisciplinary appropriations have made Lacan accessible, they risk fossilizing his teachings into static knowledge rather than preserving their disruptive force. Lacan’s resistant style counters psychology’s expertise model, insisting that psychoanalytic transmission must evoke rather than inform understanding. Where mainstream psychology assumes a knowable, unified subject amenable to therapeutic control, Lacanian psychoanalysis insists on the divided subject ($) constituted through language and structured by unconscious processes exceeding conscious mastery. This division makes the subject fundamentally transindividual rather than autonomous. Drawing on Seminar XVII, we demonstrate how Lacan’s discourses articulate the relationship between subjectivity and the social link. By integrating Marx’s surplus value with Freud’s drives, Lacan reveals how jouissance circulates like capital, producing “surplus jouissance” sustaining both symptoms and collective formations. This framework illuminates contemporary phenomena—from addiction to capitalism’s gadget-mediated foreclosure of alterity—while challenging psychology’s normalizing role. Lacanian psychoanalysis provides critical psychology tools to analyze how language, jouissance, and the symbolic order structure subjectivity and social organization.