Sentence:  It has been suggested that Lucretia's suicide can be read as analogous to her rape, her stabbing action taking the place of Tarquin's penetration. On Valla's account, this "<WSD>self-rape</WSD>" is far more reprehensible, both because it results in Lucretia's death and also because it involves her usurpation of the masculine action of stabbing oneself. 
Meaning of the word marked with <WSD> tags:  The act of inflicting obscene violence against oneself.