Radical feminist Carla Lonzi is regarded as a founding mother of Italian feminism in the early 1970s. Italian feminists look at her diaries and pamphlets as historical testimony, or as tools of self-identification. Very little work engages Lonzi’s feminist thought in its critique of psychoanalytic constructs of female sexuality, such as the forced sexual coincidence between vaginal sexuality and masculine pleasure. While reappropriating the clitoris as the site of female autonomy, Lonzi invents the ‘donna clitoridea,’ whose authenticity opposes heteronormativity. This article examines Lonzi’s theory of the clitoris and the donna clitoridea, arguing that Lonzi’s clitoris is not so much a site of pleasurable authenticity, but a phallic instrument of domination among women.