The Labour Party leader defended his manifesto after he faced an intense grilling over its credibility.
Speaking on BBC’s Question Time Leaders Special, the audience member, known as Jack, took aim at the costings which were published by the Labour Party as they released their manifesto.
He said: “Is Labour’s manifesto a realistic wish list or is it just a letter to Santa Claus?”
The remark was greeted with applause and laughter from the audience.
The audience member grilled Jeremy Corbyn about Labour's manifesto
Mr Corbyn quickly fired back at the Question Time audience member by urging him to read the manifesto.
He added: “I think it is a serious and realistic document that addresses the issues that many people in this country face.
“We have been brave enough to put it out there with all the policies that are in it.
“How we deal with the school funding crisis, how we make sure pre-school children, two to four, get 30 hours childcare per week or opportunities for pre-school, play and education.
Is Labour’s manifesto a realistic wish list or is it just a letter to Santa Clause?
“How we bring back the educational maintenance allowance so that youngsters who would be deterred from staying on at school or going to get A-levels or other qualifications.
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“And those who get into university won’t end up with debts of £50,000 or £60,000 at the end of it.
“This is nothing unusual in many other countries in the world. I think it’s time for us to invest in our future.”
Mr Corbyn also faced a grilling from host David Dimbleby and other audience members after he failed to say that he would use nuclear weapons following a nuclear attack.
The Prime Minister reiterated during her time in front of the Question Time audience that the Conservatives were the only party who could deliver Brexit.
She said: “I called a General Election because I believe the British people have a right to vote and to say who they want to see leading them through the Brexit negotiation.
The TV election debate – in pictures Wed, May 31, 2017
The televised debate saw Jeremy Corbyn, Amber Rudd, Paul Nuttall, Caroline Lucas, Angus Robertson, Tim Farron and Leanne Wood go toe-to-toe
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The politicians taking part in the debate
“I believe they should have a Prime Minister who has an absolute resolute determination to respect their will.
“My Party is the only Party that is going to respect the will of the British people get on with the job and deliver a successful Brexit.”
“We have a situation at the moment where if Jeremy Corbyn was to get into Number 10, he would be begin propped up by the Liberal Democrats and the Scottish Nationalists.
“You’d have Diane Abbott who can’t add up sitting around the cabinet table. John McDonnell who is a Marxist.
“Nicola Sturgeon who wants to break our country up and Tim Farron who wants to take us back into the EU the direct opposite of what the British people want.”
A YouGov poll released yesterday showed the Conservatives’ lead had shrunk to just three points, with an Ipsos Mori poll putting the gap at five points.