scientific gasblower 

One who engages in scientific gasblowing, or offering unscientific opinions based upon poor understanding of the subject material, insufficient data, poor logic or reasoning.

That scientific pundit on the news didn't know what he was talking about when he gave that monologue about super-string theory, he was just reading the teleprompter. He's such a scientific gasblower...

scientific gasblower by Michael Gmirkin June 13, 2008

scientific gasblowing 

Offering unscientific interpretations based upon insufficient data, faulty logic or poor reasoning. The term came from a humorous Freudian slip when reading a Digg.com article entitled "Scientific Glassblowing."

That science pundit was spouting off some nonsense about super-string theory, but it was clear he had no idea what he was talking about; it was nothing more than scientific gasblowing...

scientific gasblowing by Michael Gmirkin June 13, 2008