Derp

This word has proliferated in the political blogs I read.  I'm gradually coming to an understanding of what people mean by it.  Here is an interesting definition:
English has no word for "the constant, repetitive reiteration of strong priors". Yet it is a well-known phenomenon in the world of punditry, debate, and public affairs. On Twitter, we call it "derp".

This couches the term in Bayesian statistics, which has taken over many parts of the scientific data world in recent decades. It's also related to the term: Conventional Wisdom, in particular when CW is exactly wrong about the world. Which, in American politics, is frequent.