The singer's memoirs have been rumoured for several years, with publishing firm Faber & Faber urging him to write them in 2010.
The former Smiths frontman described the project as the "sentimental climax to the last 30 years".
"It will not be published until December 2012, which gives me just enough time to pack all I own in a box and disappear to central Brazil," he told Billboard. "The innocent are named and the guilty are protected."
He also criticised the state of modern music while discussing how he chooses which tracks to perform live.
"I would find the idea of compiling a setlist that doesn't wildly excite me to be too restricting. The fire in the belly is essential, otherwise you become Michael Bublé - famous and meaningless.
"I say without bitterness that it is nothing new. I like the idea of women who are in full control, but I am tired of seeing singers who cannot deliver a song without the aide of 750 frenzied dancers assuming the erotic."
Morrissey recently hinted that writing his memoirs may be "too much to bear".
Watch Morrissey perform 'First of the Gang to Die' at Glastonbury 2011 below: