Lapsus linguae, "slip of the tongue," names verbal error revealing thoughts speaker intended to conceal. In poetry, this phrase appears when exploring how language betrays intention, when mistakes reveal truth. Poets invoke it when dramatizing moments where controlled expression breaks down, where unconscious disrupts conscious speech. Freud made slips significant, suggesting they reveal repressed content. The phrase captures both comedy and revelation of accidental utterance. It appears in poems about speech, confession, and the gap between intention and expression, where speakers recognize that errors sometimes speak truer than deliberate statements, that tongue's slips reveal what mind tried to hide, that inadvertent utterance can be more honest than careful speech, that language escapes control and says what shouldn't be said.

Lapsus linguae names verbal errors revealing thoughts speakers intended to conceal. Freud's Psychopathology of Everyday Life made slips significant, suggesting they reveal repressed content rather than mere accidents. Poets invoke lapsus linguae when dramatizing moments where controlled expression breaks down, where unconscious disrupts conscious speech. Related to broader psychoanalytic emphasis on the return of the repressed, to the principle that we betray ourselves through linguistic failures. Useful for understanding poems about speech, confession, the gap between intention and expression. The phrase captures both comedy and revelation of accidental utterance—the speaker says what shouldn't be said, what they consciously would have suppressed. Contemporary poets use lapsus linguae when exploring how language escapes control, when recognizing that errors sometimes speak more truly than deliberate statements, when examining the unconscious's relationship to conscious expression. The phrase suggests that tongue's slips offer access to truths that official speech conceals.