Slag is a 1970 play by British writer David Hare

David Hare (playwright)

Sir David Hare is an English playwright and theatre and film director.-Early life:Hare was born in St Leonards-on-Sea, Hastings, East Sussex, the son of Agnes and Clifford Hare, a sailor. He was educated at Lancing, an independent school in West Sussex, and at Jesus College, Cambridge...

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Slag is a biting satire in which the only characters are the three teachers of a tiny isolated girl's school. To protest against the dominance

Patriarchy

Patriarchy is a social system in which the role of the male as the primary authority figure is central to social organization, and where fathers hold authority over women, children, and property. It implies the institutions of male rule and privilege, and entails female subordination...

 and abusive treatment by men epitomized by the slur as "slags", they vow to abstain

Sexual abstinence

Sexual abstinence is the practice of refraining from some or all aspects of sexual activity for medical, psychological, legal, social, philosophical or religious reasons.Common reasons for practicing sexual abstinence include:*poor health - medical celibacy...

 from sexual intercourse

Sexual intercourse

Sexual intercourse, also known as copulation or coitus, commonly refers to the act in which a male's penis enters a female's vagina for the purposes of sexual pleasure or reproduction. The entities may be of opposite sexes, or they may be hermaphroditic, as is the case with snails...

. Feminism

Feminism

Feminism is a collection of movements aimed at defining, establishing, and defending equal political, economic, and social rights and equal opportunities for women. Its concepts overlap with those of women's rights...

 and dominance are ridiculed alike, as the conflicts among the teachers' different visions of radical feminism

Radical feminism

Radical feminism is a current theoretical perspective within feminism that focuses on the theory of patriarchy as a system of power that organizes society into a complex of relationships based on an assumption that "male supremacy" oppresses women...

 and their teaching become the grist for duplicitous dominant and abusive acts among them, while the number of pupils in the resulting dysfunctional environment dwindles to zero.

Slag was a breakthrough play for David Hare, winning him the Evening Standard

Evening Standard

The Evening Standard, now styled the London Evening Standard, is a free local daily newspaper, published Monday–Friday in tabloid format in London. It is the dominant regional evening paper for London and the surrounding area, with coverage of national and international news and City of London...

(London) Award for most promising new playwright.