"Piggate" refers to a claim that, during his time at Oxford University, then-British prime minister David Cameron inserted his penis and/or scrotum into a dead pig's mouth as part of an initiation ceremony for the Piers Gaveston Society. The anecdote was reported by Michael Ashcroft and Isabel Oakeshott in their unauthorised biography of Cameron, Call Me Dave, attributing the story to an anonymous Member of Parliament who was allegedly a contemporary of Cameron's at the University of Oxford. Extracts from the book were published in the Daily Mail on 20 September 2015, prior to its publication.