BORIS Johnson described David Cameron as a “girly swot” in an official document censored by Downing Street.

The Prime Minister’s jeering reference to his predecessor was contained in a handwritten note about his plan to suspend Westminster for five weeks.

It was supplied to campaigners trying to overturn the prorogation at the High Court in London and at the Court of Session in Edinburgh.

Both courts released redacted versions of the note on Thursday.

However Sky News today published an unredacted version showing the Prime Minister’s disdain for the man whose decision to hold a Brexit referendum ultimately put Mr Johnson in Number 10.

Referring to the short September session at Westminster when MPs break for party conferences, the censored document showed Mr Johnson wrote: “The whole September session is a rigmarole introduced - REDACTED - to show the public their MPs were earning their crust.”

The uncensored version read: “The whole September session is a rigmarole introduced by girly swot Cameron to show the public their MPs were earning their crust.”