It's called misandry, from the Greek, literally, hatred of men.
"Misandry (IPA [mɪ.ˈsæn.dri]) is the hatred of men. The word comes from misos (Greek μίσος, "hatred") + andras (Greek ἀνδρας, "man"). Although misandry is sometimes confused with misanthropy, the terms are not interchangeable, since the latter refers to the hatred of humanity. An idea related to misandry is androphobia, the fear of men (male humans), but not necessarily the hatred of them."
Causes of misandry
Misandry is usually, but not exclusively, associated with women although men can also hold misandric views. Misandry is discussed less frequently than misogyny, and is also less understood, there is increasing research into and discussion about the topic. However, according to pioneering researchers Nathanson and Young (2001), "misandry in popular culture remains a dark secret" and "gender watchdogs" use a double standard that exposes the evils of mysogyny but is "notably silent" about even the existence of misandry. They assert that "unlike misogyny, misandry is still generally unrecognized as a problem".
Nathanson and Young believe that the gynocentric use of the word "gender" as a tool to blame all men "as those who created the problem of "gender" in the first place" form the root assumptions for modern misandry. To Nathanson and Young, this has meant that men are society's official scapegoats responsible for all evil, women are society's offical victims responsible for all good, and that men must be penalized and women compensated collectively for crimes against women throughout history. They believe that underlying "gender" as social construct are core assumptions that "the end justifies the means", and that "collective rights trump individual rights".
Nathanson and Young (2001) assert that the roots of misandry can be found in 'ideological', (as opposed to other forms of) feminism. They believe that 'political correctness', academic deconstructionism and what they call "fronts" are strategies used by feminist ideologues to "make the world safe" for promoting a misandric worldview. They posit that underlying ideological feminism is "an ideology derived from Marxism and romanticism but with class or nation replaced by gender as the central concept" to perpetrate the intolerant hatred of men as a class.
Some feminists and masculists posit that the "war of the sexes" arising from traditional gender roles and their breakdown are the primary source of both misogyny and misandry.[citation needed]
Some masculists maintain that misandry has been endemic since the 1980s (Nathanson & Young, 2001, p. 234) stemming from the spread of anti-male feminist advocacy in popular culture, and thus assert that misandry has become a social pathology. Some feminists, however, controversially claim that misogyny is a verifiable social disease, but misandry may not exist at all (Nathanson & Young, 2001, p. 18].
[edit] Types of misandrists
* Male feminists or what Nathanson and Young call "honorary women" who self-righteously defend women from men to seek favor from women.
* Ideological feminists who see all men as evil brutes and all women as 'good' human beings
* Women who justify misandry is a legitimate "choice" for women or a "voice" for those who have been "silenced."
* Women who justify misandry as an expedient for political purposes.
* Women who justify misandry with "something far more sinister in mind: revenge".
Many of the quotes listed in the section below from famous feminist misandrists contain one or more of the types of misandry.
[edit] Types of misandry
Nathan and Young noted the following types of man-hating behavior in Spreading Misandry (2001):
* Laughing at Men: The Last of Vaudeville
* Looking Down on Men: Separate but Unequal
* Bypassing men: Women Alone Together
* Blaming Men: A History of Their Own
* Dehumanizing Men: From Bad Boys to Beasts
* Demonizing Men: The Devil is a Man
[edit] Degrees of misandry
Misandry may be exhibited to differing degrees. In its most overt expression, a misandrist openly hates all men simply because they are 'men', exhibiting 'masculine' traits that are not to the speaker's liking. Stereotypically, these 'masculine' traits include machismo, emotional bluntness, and a loutish demeanor. Or, a misandrist might simply hate men for a perceived common physical attribute, such as large muscles, a large gut, or copious body hair.
Other forms of misandry are more subtle. Some misandrists simply hold all men under suspicion, or hate men who do not conform to one or more acceptable categories. Entire cultures may be said to be misandrist if they treat men in ways that are perceived hurtful. Misandry is often not recognised, since it exists under many different guises, disguised and qualified. {Judith Levine, 'My Enemy, My Love', 1992}
Misandry is a negative attitude towards men as a group, and as such need not fully determine a misandrist's attitude towards each individual man. The fact that someone holds misandrist views may not prevent them from having positive relationships with some men. Conversely, simply having positive relationships with some men does not necessarily mean someone does not also hold misandrist views.
) or same-sex partner but they did for the girl, it makes her options quite a bit more diverse and interesting in my opinion. 
