The Devil’s dictionary, Oct. 9 update

See the complete Devil’s Dictionary of Scientific Words and Phrases here.



offal  something inside an animal that is removed so that it can be eaten by another animal, thus returning to the inside where it belongs. An example is the Scotish dish haggis, made by thrusting a hand into the mouth of a sheep so forcefully that it passes all the way through and emerges from the other end, then grasping the tail and executing a sudden jerk in the headwards direction until the sheep is turned inside out, with its intestines on the exterior. After seasoning, the animal is roasted or baked until it shows no further signs of resistance. The first time an Englishman saw this practice he called it “awful”, to the great pleasure of the Scots, whose esteem for anything (such as the EU) rises in direct proportion to the degree of displeasure it causes the English. The Scots proudly began calling their dish “awful” haggis, but their pronunciation made it sound like “offal” to the English, who readopted it as a term to refer to “any innards that only a barbarian would eat.”

Organs that have been extracted for the purpose of transplantation are not normally considered offal, unless they are eaten by mistake. Vomit is considered offal by cats, but not humans, except in the case of projectile vomiting, which in the most severe cases includes bits of organs.

An example of the word’s proper use can be found in the sentence: “How awful is a wall of falafal full of offal.”

efflux  something that comes out of a body, usually involuntarily. Removed from its natural environment and placed, for example, on the sidewalk, or on your dinner plate, efflux usually generates a sense of disgust and nausea, because you realize that there is more of the stuff in your body. This usually leads to reflux. From a legal standpoint, efflux has the same status as garbage: once you’ve put it out on the street, it becomes public property. Dogs may come by and roll in it. DNA samples may be taken from it without a warrent. You can no longer patent it. Anyone is free to come by in a pick-up truck, take it away, and display it on their lawn, or sell it on e-bay, or use it as the basis of a start-up company.

influx  to pick up some efflux and insert it into your body, usually via the mouth, which frequently triggers reflux. If the material originally came from your own body, this is not considered cannibalism.

reflux  to eject a disgusting substance from your body for a second time by, for example, vomiting. The first time it came out it was efflux. After studying the contents of, for example, the vomit you decided it contained something your body needed, such as a kidney, and tried to return it to its natural environment (influx). The second rejection is the reflux. By this point most people figure out that the body is rejecting the substance and give up. But the literature reports a few cases of triflux, quintiflux, and a pathological condition called millifluxitis.


All entries in the Devil’s Dictionary are copyrighted 2016, by Russ Hodge, and may be freely used by citing the author and this website.


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I am a science writer at the Max Delbrück Center for Molecular Medicine in Berlin, author of fiction and popular science books, an artist, and a professional musician who performs on the viola da gamba and Medieval and Renaissance stringed instruments. I edit manuscripts of all types and teach the full range of scientific communication skills. I am doing theoretical work in this subject - see for example

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