I'll nominate Money
by Martin Amis.
Absolutely one of the funniest, smartest, meanest books I know. John Self, the Rabelaisian narrator of the novel, is an advertising man and director of TV commercials who lurches through London and Manhattan, eating, drinking, drugging and smoking too much, buying too much sex, and caring for little else besides getting the big movie deal that will make him lots of money. Hey, it was the '80s. Most importantly, however, Amis in Money musters more sheer entertainment power in any single sentence than most writers are lucky to produce in a career.
Regarded by many critics as one of the most influential and innovative voices in contemporary British fiction, Amis is often grouped with the generation of British-based novelists that emerged during the 1980s and included Salman Rushdie, Ian McEwan and Julian Barnes. His work has been heavily influenced by American fiction, especially the work of Philip Roth, John Updike and Saul Bellow. A loose trilogy of novels set in London begins with Money: A Suicide Note (1984), a satire of Thatcherite amorality and greed, continues with London Fields (1989), and concludes with The Information (1995), a tale of literary rivalry. Time's Arrow (1991), was shortlisted for the Booker Prize for Fiction.
(UK epub sources). Amazon has a Kindle edition
, but I'm not sure about geographic availability. Also available in epub at kobobooks