Oasis bad lads 'bullied drummer'.
The superstar brothers constantly taunted their old mate, calling him D***head and Useless.
During five-a-side football games, they would humiliate Tony by not giving him the ball and then viciously boot it right at him, says the book. And in the video for the band's hit single Live Forever, the cowering drummer was made to sit in a grave while the others threw dirt on him.
The Gallaghers' taunts finally took their toll when Tony, 25, snapped and had a punch-up with Liam in a Paris bar last year, the book claims.
Three weeks later, the band's management announced that he had left by "mutual consent". But everyone connected with the group knew the statement was a sham.
Six months earlier, Noel had said in an interview that his main ambition for 1995 was "to find a new drummer". But rather than simply put him out of his misery, Tony was forced to go on taking the stick.
The drummer's cruel treatment is revealed in a book by Oasis's former road manager, Ian Robertson, called What's The Story?
Robertson writes: "Tony received flak from the rest of the band crew that was often brutal. He was singled out as the "new boy" at school and bore the weight of ridicule.
"It always started with the question of how he played the drums but very quickly turned to poison and sought to annihilate his intelligence and appearance.
"It surprised me how he was able to deal with it."
Robertson reveals that Tony increasingly found his pleasure outside music with girls.
He took advantage of the eager young groupies who happily offered themselves after gigs and once had sex with a girl on the bonnet of a Mustang car.
Robertson says the drummer was picked on for different reasons.
Singer Liam, 23, and bassist Paul McGuigan reckoned he was quiet and boring. But Noel's differences were musical - he thought Tony's drumming was not up to the job and he was undermining the songs.
Robertson writes: "Noel usually led the attacks. He had a focused idea of what Oasis should be musically and Tony was becoming less and less a part of that."
But Tony, now living in America with his girlfriend, may still have the last laugh.
Last month, he won a temporary order guaranteeing him a share of the royalties for the album and singles he played on.
As Oasis's worldwide sales are massive, the total could easily top pounds 1 million.
Tony's dad Anthony, 44, an electrician in Manchester, said yesterday: "It's a pity it has all come to an end. There was some kind of bust-up with Noel and then overnight he was gone.
"I think he was quieter than the others. That's maybe why he didn't fit in as much."
And mum Bridie said: "Tony is fine and over the worst. You have just got to pick up the pieces and carry on."