Following Freud, Lacan considers language [langue] as the matter of the unconscious, beyond linguistic metaphor. Adolescence is at once the moment at which the phoneme finds its quality as an object a and at which grammar can reach the necessary complexity for the semantic effects of connotation. Subverting all denotation, the lapsus is the act of the unconscious that best testifies, then, to the fact that desire, which is a “fierce” desire during adolescence, is always politically incorrect.