What is the author's style in Island of the Sequined Love Nun by Christopher Moore?

The language in the novel is modern, as the story takes place during the 1980s. The characters all speak in English, even the natives, though reference is made to a language of their own. The characters are clearly educated and well spoken, using sarcasm and sometimes bitterness to express themselves or their anger with each other. There is no apparent difference in the intelligence of the different characters, though humor is used at times to highlight the ease of misunderstandings.