Question: What all-male student dining club based in Oxford was the focus of a play by Laura Wade?

Context paragraphs:
Chatham Dining Club: The Chatham Dining Club is a general interest Dining club based in London, United Kingdom.  The Club was founded in 1910 by Captain Rupert Ommanney and Captain Guy Dawnay whilst they were students at the British Army Staff College in Camberley.

Posh (play): Posh is a play by the British playwright Laura Wade.  It was first staged at the Royal Court Theatre downstairs in 2010.  The play concerns an Oxford student dining club called "The Riot Club", a fictionalised version of the Bullingdon Club.  The first production, produced during the British General Election, received favourable reviews.

Breathing Corpses: Breathing Corpses is an award winning 2005 play by the British playwright Laura Wade which first premiered at the Royal Court Theatre.

The Riot Club: The Riot Club is a 2014 British drama film directed by Lone Scherfig and written by Laura Wade, based on Wade's 2010 play "Posh".  The film stars Max Irons, Sam Claflin and Douglas Booth.  It is set among the Riot Club, a fictional all-male, exclusive dining club at Oxford University.  When the play "Posh" premiered, the Riot Club was often described as a thinly veiled version of the real-life Bullingdon Club, or High Trees Society, although according to Wade it is entirely fictitious.

Colder Than Here: Colder Than Here is the debut play by the British playwright Laura Wade.  It premiered in 2005 at the Soho Theatre directed by Abigail Morris.  The comedy explores a woman dying of bone cancer and her family coming to terms with her impending death.

Pythic Club: The Pythic (or "P") Club is a secretive students' dining club at Oxford University, based in Christ Church.

Tipping the Velvet (play): Tipping the Velvet is a play based on the 1998 novel of the same name by Sarah Waters, adapted for the stage by Laura Wade.  It received its world premiere at the Lyric Hammersmith, in September 2015, before transferring to the Royal Lyceum Theatre, Edinburgh the following month with whom it is a co-production.

Myrmidon Club: The Myrmidon Club is a dining club elected from the male undergraduate members of Merton College, Oxford.  Founded in 1865, it is one of the handful of such clubs with an almost continuous existence from the second half of the 19th century.  It is thought to be the model for the Junta, the fictional club in Max Beerbohm's "Zuleika Dobson", of which the Duke of Dorset was for some time the sole member.

Bullingdon Club: The Bullingdon Club is an exclusive but unofficial all-male students' dining club based in Oxford.  It is noted for its wealthy members, grand banquets, boisterous rituals and destructive behaviour, such as the vandalising ("trashing") of restaurants and students' rooms.

Hysteron Proteron Club: The Hysteron Proteron Club, sometimes spelt "Husteron Proteron", was a dining club at Balliol College, Oxford, in the 1920s.

Supporting paragraphs: Posh (play) Bullingdon Club
Answer: Bullingdon Club