Matthew Theron Ruff is an American author of a small, but very diverse collection of novels. All of them feature (sometimes quite dark) humor and somewhat fantastic elements.
He has written, in chronological order:
Fool On The Hill (1988) - his debut novel, inspired by his time (and set at) Cornell University. A Fantasy Kitchen Sink about a young writer caught between Greek gods, talking animals, the fair folk, and monkeys with typewriters.
Sewer Gas and Electric: The Public Works Trilogy (1997) - a Post Cyber Punk novel, according to The Other Wiki. Set in the near future after a pandemic has wiped out (nearly) all black people, it features mutant sharks in Absurdly Spacious Sewers, androids, eco-pirates, and Ayn Rand in a bottle.