Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

This comic is built around the word "prefenestrated." An English major tells someone, "Sir, at this moment, you should consider yourself prefenestrated!" The caption below reads: "It took about ten minutes to figure out that the English major was threatening me."

The joke hinges on the word "defenestration," which means the act of throwing someone out of a window (from the Latin de- meaning "out of" and fenestra meaning "window"). "Prefenestrated" would logically mean "about to be defenestrated" -- i.e., "I'm about to throw you out a window." The humor comes from the stereotype of English/humanities majors using such obscure and elaborate vocabulary that even their threats require decoding. It also plays on the real word "defenestration," which is itself a famously over-specific term beloved by word enthusiasts -- the Defenestrations of Prague being perhaps the most well-known historical examples. The comic suggests that an English major's aggression would naturally take the form of inventing precise but impenetrable neologisms.