mystery quote

and so I read this quote today and its funny as hell. However I have no idea what it means. Given that it is by Germaine Greer, one wonders if it has some male-bashing or hot lesbian overtones that I may be oblivious to. Could it be just a light hearted pop soundbyte from a grouchy old feminist loony? Anyhoo here's the quote:

Oral sex is like being attacked by a giant snail.
-- Germaine Greer

To be able to explain this to me you must have the strength of a grizzly, the reflexes of a puma, and the wisdom of a man.