Why is the movie better than the book, in this case? Because there are so many bad puns and references in the reviews! This one doesn't quite make sense (the original phrase is a 19th-century euphemism for homosexuality, used at the trial of Oscar Wilde).
I loved the made-up dialogue between the two lead actors at the premiere here (courtesy of Bookshelves of Doom).
"Nothing to sink your teeth into," says my local newspaper. "The chaste romance might be appropriate, but it is also, well, bloodless."
Aurgh! "Appropriate" to what? Its PG13 rating? The IQ of its fan base? The gloom of my holiday season with no Harry Potter movie?