He also reportedly muttered under his breath that she was “****ing useless”.
Now a Government insider has revealed that Mrs Leadsom will ultimately decide whether or not the Speaker will be granted a peerage.
A source said: “Who’s looking stupid now? As Leader of the House, Andrea will ultimately be the one to sign off Mr Bercow’s admission to the Lords so he’d be wise to keep her on side.”
Traditionally, Speakers are given automatic admission to the House of Lords in recognition of their contribution to parliamentary life.
Yet a dark cloud has hung over Mr Bercow’s nine-year tenure after he was accused of bullying by a number of staff.
A string of MPs are understood to have taken him aside in recent weeks to privately tell him his “time is up”.
When he first took office in June 2009, he pledged to serve nine years – although that deadline passed on Friday.
He is now under growing pressure to set a date for his departure, with potential successors openly campaigning.
And he was under fi re again last week after a minister branded his behaviour towards her as “sexist and demeaning”.
Energy minister Claire Perry said “verbal violence” against women was unacceptable.