Stand-in presenter Eddie Mair accused him of "making up quotes, lying to your party leader and wanting to be part of someone being assaulted".
"You're a nasty piece of work aren't you?" he suggested. Mr Johnson said he disputed "all of those things".
George Osborne is under pressure to tear up his austerity programme after Boris Johnson called on the government to drop its "hair-shirt, Stafford Cripps" agenda and Liberal Democrat leaders demanded a spending boost in the spring budget.
In other news, Boris Johnson is a fucking moron.
BORIS Johnson will become prime minister because he seems funny, it has been claimed. Professor Henry Brubaker said: “Boris Johnson has been on almost every entertainment show, which pretty virtually guarantees him the vote of Britain’s sizeable idiot demographic, a group almost as large as the electorate. Idiots love Johnson’s contrived, clownish TV persona, and so will vote for him even if his policies mean they’ll be living under a flyover and cooking rats over a brazier."
Backbencher says he was approached to run as 'stalking horse' while Zac Goldsmith reportedly offers safe seat to Boris Johnson
Boris Johnson has told David Cameron to 'stop pussyfooting around' on the economy as he confirms for first time he is considering returning to Parliament.
Boris Johnson his the early favourite among grassroots Tories to succeed David Cameron as leader, according to a poll conducted by Conservativehome.
London mayor calls BBC 'statist, corporatist, defeatist, anti-business, Europhile and overwhelmingly biased to the left'
BORIS Johnson risked inflaming a north-south row when he claimed: if you want to boost the Manchester economy, invest in London. Mother fucker.