PMQs: Cameron in Ed Balls 'political maso-sadism' jibe

The prime minister mixed up his words when he spoke about Ed Balls and "political maso-sadism" leading to a wall of noise from MPs.

The speaker appeared to be the only one not amused as he told MPs they knew what he meant, but that was not the end of the matter.

David Cameron then broke off from answering the next question to explain what he really meant when he spoke about the shadow chancellor.