"As a recent TUC recent report highlights, workplace sexism is often wrongly excused as a joke. But it is not a laughing matter. Many Labour women will rightly see Owen Smith's comments as sexist and outdated, and for him to dismiss the issue as "banter" rather than apologising is not acceptable from a candidate for Labour leader. Owen Smith should apologise and withdraw the remark."

In July, Smith was forced to defend saying that he wanted to “smash” Theresa May “back on her heels” as he outlined 20 new Left-wing policies in a speech.

The former shadow work and pensions secretary said he stood by the comment and denied he was advocating violence as he was challenged on the remark by journalists.