What is "big school"

n. (context British puerile English) secondary school.

Big School is a British sitcom, starring David Walliams, Catherine Tate, Steve Speirs, Frances de la Tour and Philip Glenister. It is set in a secondary school and follows the comedic relationships of the teachers. The first series began airing on BBC One on 16 August 2013, and was met with polarised reviews. The final episode of the first series aired on 20 September 2013. On 2 December 2013, BBC One controller Charlotte Moore announced that Big School had been renewed for a second and final series, which concluded on 10 October 2014. In June 2015, it was officially announced that Big School was not to be returning for a third series.