Lapsus is an involuntary mistake made while writing or speaking. According to Freud, in his early psychoanalytic theory it represents a missed deed that hides an unconscious desire.
In literature there are a number of different lapsus depending on the mode of correspondence:
Lapsus Linguae (pl. same): slip of the tongue. Lapsus Calami: slip of the pen. With the variation of Lapsus Clavis: slip of the typewriting Lapsus Manu: slip of the hand. Similar to Lapsus Calami. Lapsus Memoriae: slip of memory.
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