Brian de Ford's definitions

smugsplain

A condescending, patronizing, arrogant, and, above all, SMUG explanation from somebody who understands almost nothing about a subject but is convinced that he knows more about it than anybody on the planet. The smugness comes from the belief that he is both the world's greatest expert on the topic and, despite (mistakenly) feeling superior to the rest of humanity, is capable of explaining it down to their level.

On QI XL, Stephen Fry smugsplained how GPS works, getting it completely wrong.

by Brian de Ford May 20, 2018