Harry Redknapp threatened to "sue the bollocks" off a journalist as he angrily denied taking bungs, a court heard on Tuesday.
The Tottenham Hotspur manager is accused of taking secret payments from former Portsmouth chairman Milan Mandaric while he was manager of the club - a charge he denies.
In short extracts from a phone conversation read out to a jury at Southwark Crown Court, Redknapp told News of the World reporter Rob Beasley he had "the best accountants in England", claiming the Inland Revenue was fully aware of his dealings in Monaco.
When Beasley described how Mandaric had told him the money sent to Redknapp's offshore accounts were investments outside football, the Tottenham Hotspur manager replied: "He don't know what he is f****** talking about. What is he talking about? It is a bonus."
Explaining that the payments surrounded profit made on the sale of Peter Crouch from Portsmouth to Aston Villa, Redknapp added: "If it was something dodgy I would have gone over there and brought it back in a briefcase."
When Beasley asked him whether he had paid any tax in the UK on it, Redknapp replied: "Haven't been asked to, Rob."
Redknapp said "there ain't nothing crooked in it" as the telephone conversation went on, the court heard.
"Don't say bung," Redknapp said. "It's nothing to do with a bung. It's paid by the chairman. How can it be a bung when the chairman of the football club paid me?"
He added: "What's a bung? It's a f****** sick word."
When asked about the bonus clause in his contract, Redknapp said: "My accountant has got my contract ... I'm not going to f****** show you."
He added: "The Inland Revenue know all about it. I've got nothing to defend, Rob.