Knowledge that is "sensed" to be true by everyone, but results in most believing the world is flat. Tends to be an overused excuse by pseudo-intellectuals to prove their own vapid points.
John: "I can't belive Kelly failed her test. She studied and everything..."
Tommy: "But she's blonde. Everyone knows blondes are ridiculously stupid. It's just common sense."
John: "What?"
Tommy: "But she's blonde. Everyone knows blondes are ridiculously stupid. It's just common sense."
John: "What?"
by That Person Who's Wrong. February 20, 2010