series of tubes

A phrase used by US senator Ted Stevens in 2006 to describe the workings of
the internet. "It's a series of tubes!", "The internet is not a big truck"
and "what happens to your own personal internet?" soon became viral phrases.

This rambling and highly incoherent speech about the internet - difficult
to really tell whether it was for or against net neutrality -  is a classic
example of a suit who doesn't really understand the technology nevertheless
attempting to appear authoritative.